Nutrient-rich formula
This is a marketing claim; an ingredient list cannot speak to it.
—
Stated by brand
Can’t be confirmed from label.
Mielle Organics
Rosemary Mint Scalp & Hair Strengthening Oil
Scalp treatment
- Scalp treatment
- oil
- Sulfate-free
- Silicone-free
Size2 fl oz
Priceabout $10commonly seen · 2 oz
Price / oz$5.00/ozat 2 oz
Where to buy4 stores · $9.97–10.99
Add it to your products. We’ll tell you if it’s ever recalled.
Manufacturer page: mielleorganics.com
Personal fit
Is this right for you?
Complete the consultation to see how well this product fits your hair and your goals. With 6,000+ products in our library, we can match you to the right ones.
- About 20 minutes, and your answers save as you go.
- Every product matched against your hair across the 21 factors we check.
- A personalized routine built around your schedule, styling habits, and local weather.
- Find products that do the same job at a lower cost.
- Your goals, scalp, damage history, water, budget, and scent preferences all shape your plan.
$49 with 60 days of follow-up questions and plan updates
$99 with 12 months. Pay once; the year renews only if you choose.
Factor
Your profile
Fit
Best for hair types
Curly–Coily
Not in your profile
Moisture level
Moderate
Not in your profile
Water-binding (humectants)
Low
Not in your profile
Slip / detangling
Some
Not in your profile
Weight on hair
Rich
Not in your profile
Fragrance
None listed
Not in your profile
Protein
None
Not in your profile
Silicone / wax buildup
High
Not in your profile
Clarifying wash needed
High
Not in your profile
Scent
Fresh & airyStrength not recorded
Not in your profile
Show all 21 factors we check
The rest of what your plan weighs on this product.
Parabens / preservatives
None of these listed
Not in your profile
Essential oils
Present
Not in your profile
Fast-drying alcohol
None
Not in your profile
Vegan / cruelty-free
Not yet verified
Not in your profile
Animal-derived ingredients
Not yet verified
Not in your profile
Heavy humectants
Not heavy
Not in your profile
Hard-water defence
None
Not in your profile
UV filter
None listed
Not in your profile
Ingredient list
31 ingredientsA long list
Not in your profile
Price tier
Drugstore
Not in your profile
Where to buy it
Brand websiteOne channel
Not in your profile
The consultation builds your hair profile, checks every factor in this table against it, and tells you where this product fits or what to use instead.
Start your consultation$49 once, with 60 days of follow-up questions and plan updates. Nothing renews, and you never have to buy a product.
Your avoid-list
Priced with its peers
$5.00/oz at 2 oz, less than 68% of the 280 scalp treatments , which mostly run $3.84–19.05/oz. The cost less.
Great for
no fragrance (parfum) on the label, but still scented
Protein-sensitive hairthat stiffens when protein is added
Coarse or dry hairthat absorbs everything you give it
Silicone-free routinesno silicones appear in the list
Very dry hairno fast-drying alcohol in the list
Tight budgetsit sits in the lower price tiers
Maybe skip if
this product has a scent
Oily scalp or fine hairthat gets weighed down
Stretching wash dayswaxes stay until a detergent wash removes them
Picking it up locallywe’ve only seen it sold in one channel
What the formula actually does
Read from the label, not the marketing
Each row says where it comes from: F means we derived it from this product’s own ingredient list, S means it is a claim the brand makes that the formula neither confirms nor contradicts.
Slip and detangling
Some
Some slip, mostly from esters or silicones rather than conditioners.
Oils and butters
Present, high in the list
Oils sit high in the list: a softening, coating formula.
Weight on the hair
Rich
Heavy butters and waxes in the first eight ingredients.
Water-binding (humectants)
Low
Humectants appear, but low enough to be a minor part.
Protein
None
No protein or amino acids in the list.
Needs detergent to remove
Yes
Water-insoluble silicones or waxes: a detergent wash is what removes them.
Hard-water defence
None
No chelating agent in the list.
Fragrance
None listed
No fragrance is listed.
from the formula
stated by the brand
reported by reviewers
Scale: 1 dot low · 5 dots high, within this product type.
Ingredients that matter
The ingredients that change a decision
The workhorse ingredients, plus anything lower down that changes a decision. The chips name what an ingredient does. They are not safety scores, and no ingredient here is rated good or bad on its own.
| Ingredient | What it does | Why it matters | Chip |
|---|---|---|---|
| Glycine Soja (Soybean) Oil | oil | Coats and softens the strand | Softens |
| Ricinus Communis (Castor) Seed Oil | oil | Coats and softens the strand | Softens |
| Rosmarinus Officinalis (Rosemary) Leaf Oil | botanical extract | A plant extract, there as much for marketing as for function | Fragrance |
| Simmondsia Chinensis (Jojoba) Seed Oil | emollient | Softens and smooths the strand | Buildup |
| Mentha Piperita (Peppermint) Oil | botanical extract | A trace plant extract | Fragrance |
| Eucalyptus Globulus Leaf OilEucalyptus Globolus (Eucalyptus) Leaf Oil | botanical extract | A trace plant extract | Fragrance |
| Menthol | fragrance | The scent | Fragrance |
| Melaleuca Alternifolia (Tea Tree) Leaf OilMelalueca Alternifolia (Tea Tree) Leaf Oil | botanical extract | A trace plant extract | Fragrance |
| Lavandula Angustifolia (Lavender) Oil | botanical extract | A trace plant extract | Fragrance |
| Pogostemon Cablin (Patchouli) Oil | botanical extract | A trace plant extract | Fragrance |
What the list leaves out, and what it carriesThe list carries no sulfates, silicones, or drying alcohols. No protein: a moisture formula, not a repair one. Heavier butters sit in the working part of the list.
Full ingredient list (31)
In the US, ingredients above 1% are listed from most to least. Below 1% they can appear in any order. Each note keeps three things apart: what the ingredient generally does, its role in this type of product, and what its position can tell you.
-
1
Glycine Soja (Soybean) Oil
General function
A light plant oil used to soften and carry other oil-based ingredients.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
May suitDry, coarse, or high-porosity hairCoats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
May suitFrizz-prone, damaged, or high-friction hairA thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
May not suitFine or easily flattened hairNear the top of a list an oil is weight before it is anything else, and fine hair shows that first at the roots.
- oil
- emollient
-
2
Ricinus Communis (Castor) Seed Oil
General function
A thick, tacky oil used for sealing ends and for slick, held-down styles.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
May suitDry, coarse, or high-porosity hairCoats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
May suitFrizz-prone, damaged, or high-friction hairA thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
May not suitFine or easily flattened hairNear the top of a list an oil is weight before it is anything else, and fine hair shows that first at the roots.
- oil
- emollient
-
3
Rosmarinus Officinalis (Rosemary) Leaf Oil
General function
Rosemary essential oil, used for scent and its traditional scalp reputation.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
May not suitFragrance-sensitive routinesEssential oils are fragrance. Several carry constituents on the EU list of declared fragrance allergens, so a label with no fragrance line can still be a scented product.
- botanical extract
- essential oil
- fragrance
-
4
Simmondsia Chinensis (Jojoba) Seed Oil
General function
Not chemically an oil: about 97% of it is liquid wax esters, which is why it resists going rancid and sits close to the scalp's own sebum. It smooths without a heavy finish.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
May suitDry, coarse, or high-porosity hairCoats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
May suitFrizz-prone, damaged, or high-friction hairA thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
May suitMaximum-hold stylingA wax holds by staying solid on the strand, which gives grip and separation rather than a set film that cracks.
- emollient
- light ester
- oil
- wax
- ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
-
5
Mentha Piperita (Peppermint) Oil
General function
Peppermint essential oil, used for scent and the cooling feeling on the scalp.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May not suitFragrance-sensitive routinesEssential oils are fragrance. Several carry constituents on the EU list of declared fragrance allergens, so a label with no fragrance line can still be a scented product.
- botanical extract
- essential oil
- fragrance
-
6
Eucalyptus Globulus Leaf Oil
· Eucalyptus Globolus (Eucalyptus) Leaf Oil
General function
The essential oil of Eucalyptus Globulus. Essential oils are aromatic — they are in the formula for scent, and they are a common source of declared fragrance allergens.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May not suitFragrance-sensitive routinesEssential oils are fragrance. Several carry constituents on the EU list of declared fragrance allergens, so a label with no fragrance line can still be a scented product.
- botanical extract
- essential oil
- fragrance
-
7
Menthol
General function
Produces the cooling, tingling feeling on the scalp. The sensation is real; it is not evidence that anything else is happening.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesDeclared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.
- fragrance
- active
-
8
Melaleuca Alternifolia (Tea Tree) Leaf Oil
· Melalueca Alternifolia (Tea Tree) Leaf Oil
General function
Tea tree essential oil, used in scalp products for its sharp scent and traditional clarifying reputation.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May not suitFragrance-sensitive routinesEssential oils are fragrance. Several carry constituents on the EU list of declared fragrance allergens, so a label with no fragrance line can still be a scented product.
- botanical extract
- essential oil
- fragrance
-
9
Cocos Nucifera (Coconut) Oil
General function
One of the few oils small enough to move into the strand, which is why it is used for pre-wash treatments. It can feel heavy or stiff on protein-sensitive hair.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
International Journal of TrichologyMay suitFrizz-prone, damaged, or high-friction hairA thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
-
10
Equisetum Arvense Extract
· Equisetum Arvense (Horsetail) Extract
- botanical extract
-
11
Aloe Barbadensis Extract
- botanical extract
-
12
Lavandula Angustifolia (Lavender) Oil
General function
Lavender essential oil, used for scent in aromatherapy-positioned products.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May not suitFragrance-sensitive routinesEssential oils are fragrance. Several carry constituents on the EU list of declared fragrance allergens, so a label with no fragrance line can still be a scented product.
- botanical extract
- essential oil
- fragrance
-
13
Triticum Vulgare (Wheat) Germ Oil
General function
Wheat germ oil, a heavier oil used in small amounts for conditioning.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May suitDry, coarse, or high-porosity hairCoats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
May suitFrizz-prone, damaged, or high-friction hairA thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
-
14
Carthamus Tinctorius (Safflower) Seed Oil
General function
A light oil that softens without much residue.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May suitDry, coarse, or high-porosity hairCoats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
May suitFrizz-prone, damaged, or high-friction hairA thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
-
15
Oenothera Biennis (Evening Primrose) Oil
General function
A light oil rich in fatty acids, used in scalp and dry-hair treatments.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May suitDry, coarse, or high-porosity hairCoats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
May suitFrizz-prone, damaged, or high-friction hairA thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
-
16
Vitis Vinifera (Grape) Seed Oil
General function
A light oil used where softness is wanted without weight.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May suitDry, coarse, or high-porosity hairCoats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
May suitFrizz-prone, damaged, or high-friction hairA thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
- 17 Benzyl Nicotinate
-
18
Prunus Amygdalus Dulcis (Sweet Almond) Oil
General function
A medium-weight oil used for softness and slip.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May suitDry, coarse, or high-porosity hairCoats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
May suitFrizz-prone, damaged, or high-friction hairA thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
-
19
Oryza Sativa (Rice) Bran Oil
General function
A light oil used for shine and slip, often alongside rice-derived proteins.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May suitDry, coarse, or high-porosity hairCoats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
May suitFrizz-prone, damaged, or high-friction hairA thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
-
20
Tocopheryl Acetate
- antioxidant
- vitamin
-
21
Biotin
- vitamin
-
22
Arctium Lappa Root Extract
· Arctium Lappa (Burdock) Root Extract
- botanical extract
-
23
Glycerin
General function
Glycerin, also called glycerol, attracts moisture and mixes completely with water.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Scientific ReportsMay suitDry, coarse, or high-porosity hairHigh-porosity hair loses water fast; a humectant holds some of it in place for longer than the wash itself would.
May suitVery dry or highly damaged hairBinds water into the outer layers of the strand, and water is what makes dry hair flexible again rather than brittle.
DependsClimate-sensitive or frizz-prone hairWater moves both ways. Measured across concentrations, glycerin solutions give water up in some conditions and take it from the air in others. What it does for you depends on how much of it is there and on the air around it.
- humectant
-
24
Apium Graveolens (Celery) Seed Extract
- botanical extract
- 25 Cholecalciferol (Vitamin D)
-
26
Ascorbic Acid
- antioxidant
- vitamin
- 27 Ocimum Basilicum (Basil) Oil
-
28
Pogostemon Cablin (Patchouli) Oil
- botanical extract
- essential oil
- fragrance
-
29
Salvia Officinalis (Sage) Oil
- emollient
- essential oil
- oil
-
30
Silica
General function
A fine mineral powder that absorbs oil and adds grip. It is what makes texture powders and matte pastes feel dry to the touch.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay suitFine or easily flattened hairA dry powder takes up oil and adds friction between strands, which is most of what root lift in fine hair actually is.
- powder
- thickener
- mineral
-
31
Urtica Dioica (Nettle) Extract
- botanical extract
What the whole list adds up to
- 11 oils
- 11 emollients
- 11 botanical extracts
- 7 essential oils
- 7 fragrances
- 3 vitamins
- 2 antioxidants
- 1 light ester
- 1 wax
- 1 active
- 1 humectant
- 1 powder
- 1 thickener
- 1 mineral
Ingredient list captured 2026-09-03. Formulas change, so check the package in your hand when an ingredient matters to you.
Price · 2 oz
Commonly seen
about $10
Good value under
$10
Priced above the products that do the same job. Stores sell it above the $10 line; products that do this job typically go for about $15 at this size.
Show the price ladder
Where we’ve seen it5 listings · 4 stores
2 ozusual store sizeBest per ounce
-
Walmart
$9.972 oz · $4.99/ozSep 5Lowest per oz
-
Target
$9.992 oz · $5.00/ozSep 5
-
CVS
$10.992 oz · $5.50/ozSep 5
-
Mielle Organics (mielleorganics.com)
$9.99Sep 4
-
Mielle Organics (mielleorganics.com)
$9.99Sep 4
Sorted by price per ounce. Dated observations from our research, not live prices. Direct store pages, no affiliate links. We don’t sell this product.
How we work this out
- 2 oz is the size stores list most often; every comparison on this page is made at it. Other sizes are shown in the Sizes row and the store list.
- Commonly seen is the middle half of current prices for the 2 oz at recognised stores. We leave out the cheapest and most expensive quarters, so one sale or one overpriced listing can’t move it.
- Good value under $10 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $4.88/oz; at 2 oz that is $10. Under that line you are paying less than most of them.
- About $15 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 2 oz.
Formula
4
Formula score
4 of 10
Mid-range per ounce for a shorter formula: there is no conditioning agents up front here.
How the score is counted
- Costs less per ounce than 68% of the 280 scalp treatments we’ve priced
- No conditioning agents up front in the formula
- No slip for detangling either
- Reviewers mention 4 things they like about how it performs
- Conditioning agents up frontWhat makes wet hair comb through.3 pts
- Oils or butters in the working zoneSoftens the strand rather than just coating it.2 pts
- Slip for detanglingReduces the force it takes to comb wet hair.2 pts
- A humectantBinds water into the hair.1 pt
- A pH adjusterBrings the formula to the acidic pH hair prefers.1 pt
- Fragrance kept out of the top eightScent as a finishing touch, not a major share.1 pt
The formula score measures completeness for the job: a weighted share of the systems this product type is usually built around that we find in this list. It does not rate how well the product works or its quality, and it never compares across product types.
Does the same job
Formulas that do the same things (cleanse, condition, coat or hold) for less per ounce. Scent, texture and where you buy them can still differ.
Mielle OrganicsSame function
Rosemary Mint Light Scalp & Hair Strengthening Oil
$5.00/oz
- Fragrance-free
- Protein-free
- Rich
Kreyòl EssenceClose function
Pomad Kreyol Natural Scalp Balm Growth Treatment
$5.50/oz $0.50/oz more
- Fragrance-free
- Protein-free
- Rich
- Function
- Also
Aunt Jackie'sLowest cost per oz
Saw Palmetto, Jamaican Black Castor & Grapeseed Oil Elixir Hair & Scalp Oil
$4.50/oz $0.50/oz less
- Fragrance-free
- Protein-free
- Rich
- Function
See more alternatives in the product library
These products do a similar job. We haven’t matched them to you. Find the one that fits your hair, routine and budget
Final decision
Should you buy it?
A solid pick for the hair it suitsBest user
People sensitive to fragrance, looking for a formula with no added fragrance and a protein-free formula
Biggest tradeoff
Less suited to anyone sensitive to fragrance, oily scalps and fine hair, or anyone stretching time between washes
Best alternative if not
Nothing in our library matches it closely at a lower price.
We do not sell products or take placement fees. This page states what the formula and the prices show; the consultation is what matches it to a person.
Claims check
What the brand says, and what the formula shows
Claims are quoted from the brand. We mark a claim supported, partly supported or conflicting only when the ingredient list speaks to it. Everything else stays "stated by the brand". That isn’t a criticism: most claims can’t be checked from a label.
1
SupportedBacked by ingredients
0
Partly supportedSome supporting logic
8
Stated by brandNo clear evidence
0
Potential conflictFormula works against claim
Intensive formula
This is a marketing claim; an ingredient list cannot speak to it.
—
Stated by brand
Can’t be confirmed from label.
Nourishes hair follicles
Humectants or rich emollients sit in the first eight ingredients.
- Glycine Soja (Soybean) Oil
- Ricinus Communis (Castor) Seed Oil
- Simmondsia Chinensis (Jojoba) Seed Oil
Supported
Helps hair feel hydrated.
Smooths split ends
No protein or bond ingredient appears in the list.
—
Stated by brand
Can’t be confirmed from label.
Helps with dry scalp
This is a marketing claim; an ingredient list cannot speak to it.
—
Stated by brand
Can’t be confirmed from label.
Essential oils
This is a marketing claim; an ingredient list cannot speak to it.
—
Stated by brand
Can’t be confirmed from label.
Fresh, invigorating scent
This is a marketing claim; an ingredient list cannot speak to it.
—
Stated by brand
Can’t be confirmed from label.
For protective styles
This is a marketing claim; an ingredient list cannot speak to it.
—
Stated by brand
Can’t be confirmed from label.
Award Winner 2023 Glamour Beauty & Wellness
A sales or award claim. It says nothing about what is in the bottle.
—
Stated by brand
Popularity, not performance.
How to read this
We look at the first 10–15 ingredients and what they do in a formula, not at the marketing. If the list doesn't speak to a claim, we don't assume.
Reviewers
What people report
Themes that come up again and again in sourced reviews, written by our researchers in their own words. We don’t store or scrape star ratings.
Many reviewers enjoy the fresh, herbal mint scent, though a few find it quite strong at first.
Reviewers across hair typesReviewers say the bottle lasts for weeks or months and feels like good value for the price.
Reviewers across hair typesSeveral reviewers say their hair looks shinier and feels softer after use, with added moisture.
Reviewers across hair typesSome reviewers use it on a dry or itchy scalp, applying drops along the parts for hydration.
Reviewers with dry or itchy scalpSeveral reviewers find a small amount goes far, and using too much can leave hair greasy near the roots.
Reviewers across hair typesMore from Mielle Organics
How this page was made
- Everything above comes from our researched product record: identity, the ingredient list as printed, the brand's own claims, dated prices and review themes our researchers wrote in their own words. No part of this page is written by hand for one product.
- The value band is a fixed label over two stored numbers: this product’s cost per ounce as a percentile of every product of this type we have priced, each at the size it is most often sold in, and how many products we score as doing the same job cost at least a quarter less per ounce.
- Both scores out of ten are defined on this page. The formula score is completeness for the job, computed from a fixed per-format checklist shown beneath the gauge; the price score is cost per ounce against every product of this type we have priced.
- The "Is this right for you?" panel reads only your own consultation answers, and it applies exactly the filters our recommendation engine applies. It is computed when you load the page and is never stored on it.
- 6 sources consulted for this product (0 manufacturer or regulatory, 1 retailer, 5 editorial), last checked 2026-10-31.
- Ingredient references are linked for 4 of 18 product-aware annotations on this page. Fit notes are general formulation guidance. They aren’t a verdict on the finished product or on you.
- We haven’t tested this product in a lab, and we don’t physically test your hair. Formula readings come from the ingredient list. Claims about how it behaves are labelled as the brand's.
- Ingredient order tells you relative amount only above roughly 1%. Prices are what we saw on the dates shown and can change.
- Ingredient names link to our ingredient library, where each entry shows what it does, which product types use it, and where it usually sits on a label across everything we have researched.
- This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.
- Formula readings: derivation v23. Record last updated 2026-10-07.
