Sizes & containers
8.5 ounces · bottle · $27 at one store
Voluminous Sea Salt Shampoo
Shampoo / Gentle cleanser, gentle
- Shampoo
- Sulfate-free
- Silicone-free
- Curly-method
Add it to your products. We’ll tell you if it’s ever recalled.
Scent:
The ingredient list declares fragrance. What it smells of is not stated, and we do not guess.
Manufacturer page: natureskinshop.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 22 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.
Show all 22 factors we check
The rest of what your plan weighs on this product.
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
Same job for less elsewhere
$3.18/oz at 8.5 oz, more than 77% of the 1544 shampoos , which mostly run $0.79–3.04/oz.
Great for
Maybe skip if
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.
Removes light dirt and oil without stripping.
An ordinary shampoo lather.
Conditioning agents sit high in the list, so this is a detangling formula.
Humectants in the working part of the formula.
No over-the-counter scalp active.
No chelating agent in the list.
Nothing here needs a detergent wash to remove.
Protein high in the list: a strengthening formula, not a moisture one.
Fragrance is listed; it sits below the working ingredients.
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 |
|---|---|---|---|
| WaterPurified Water | solvent | The base everything else is dissolved in | Neutral |
| Guar Hydroxypropyltrimonium Chloride | conditioning agent | Puts conditioning back as it washes | Detangles |
| Camellia Seed OilCamilia Seed Oil | oil | Coats and softens the strand | Softens |
| Sodium ChlorideDead Sea Salt | salt | Thickens the formula | Stabilizes |
| Sodium Cocoyl Isethionate | mild anionic cleanser | — | Cleanses |
| Sodium Lauroyl Sarcosinate | mild anionic cleanser | — | Cleanses |
| Sodium Cocoyl Hydrolyzed Soy Protein | conditioning agent | Puts conditioning back as it washes | Protein |
| Potassium Cocoate | cleanser | Does the cleaning | Cleanses |
| FragranceFragrance Oil</p> | fragrance | The scent | Fragrance |
Full ingredient list (20)
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
Water
· Purified Water
General function
The base of almost every rinse-off and cream hair product. It carries everything else and is normally the first ingredient on the label.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
- solvent
-
2
Guar Hydroxypropyltrimonium Chloride
General function
A conditioning polymer made from guar bean gum. It deposits during rinsing, which is why sulfate shampoos can still leave hair soft.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
May suitCurls or waves needing flexible holdGums thicken and set soft, which gives definition that bends rather than a rigid cast.
May suitFrizz-prone, damaged, or high-friction hairCationic conditioners bind to the negatively charged damaged cuticle, laying it flat and cutting the friction that causes combing breakage.
May suitMaximum-hold stylingA styling polymer dries into a film across the strands, which is what makes a shape hold instead of relax.
- conditioning agent
- polymer
- gum
-
3
Camellia Seed Oil
· Camilia Seed Oil
General function
The oil pressed from Camellia. It is one of the lighter plant oils, absorbing faster and leaving less residue.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
- oil
- emollient
-
4
Sodium Chloride
· Dead Sea Salt
General function
Table salt. In shampoo it is used to thicken the liquid, not to treat the hair.
Supporting ingredientPubChemListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
- salt
- thickener
-
5
Sodium Cocoyl Isethionate
General function
A mild cleanser that gives a creamy lather and leaves hair less stripped than sulfates.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
May suitCurls or waves needing flexible holdThe detergent class most curl routines are built around: it lathers and cleanses without stripping the strand back to bare.
May suitDry, coarse, or high-porosity hairA gentler detergent leaves more of the surface oil that slows water loss from coarse or porous hair.
May suitVery dry or highly damaged hairCleanses with less sebum removal than a sulfate detergent, so hair that is short of moisture keeps more of it through the wash.
- mild anionic cleanser
- cleanser
-
6
Sodium Lauroyl Sarcosinate
General function
A gentle cleanser that leaves a soft after-feel; often paired with stronger detergents.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
PubChemMay suitCurls or waves needing flexible holdThe detergent class most curl routines are built around: it lathers and cleanses without stripping the strand back to bare.
May suitDry, coarse, or high-porosity hairA gentler detergent leaves more of the surface oil that slows water loss from coarse or porous hair.
May suitVery dry or highly damaged hairCleanses with less sebum removal than a sulfate detergent, so hair that is short of moisture keeps more of it through the wash.
- mild anionic cleanser
- cleanser
-
7
Sodium Cocoyl Hydrolyzed Soy Protein
General function
A protein given a positive charge so it deposits where hair is damaged. It conditions and adds temporary firmness in one ingredient.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
- conditioning agent
- film former
- protein
- hydrolysed protein
-
8
Potassium Cocoate
General function
Coconut soap. It cleans well but is alkaline, which can leave hair rough unless an acidic rinse follows.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
- cleanser
-
9
Panthenol
· Provitamin B5
General function
Provitamin B5. It draws in water and penetrates the strand a little, which is why it is the standard ingredient for softness and shine claims.
Secondary ingredientLower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.
PubChemMay suitFine or easily flattened hairIt hydrates without adding oil or a film, which is the combination fine hair usually needs.
May suitFrizz-prone, damaged, or high-friction hairDeposits a lubricating layer that makes combing easier, which is most of what stops mechanical damage adding to frizz.
May suitVery dry or highly damaged hairA humectant that also penetrates the cuticle, so it holds water inside the strand rather than only on the surface.
- humectant
- conditioning agent
- vitamin
-
10
Polyquaternium-7
· Polyquaternium 7
General function
A conditioning polymer that improves wet combing and adds body. Repeated use can build up on fine hair.
Secondary ingredientLower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.
May suitCurls or waves needing flexible holdCationic polymers hold a curl loosely and stay soft, which is why they turn up in definition products rather than firm-hold ones.
May suitFrizz-prone, damaged, or high-friction hairA cationic polymer stays on the hair through rinsing, which is what keeps static and combing friction down after the wash.
May suitMaximum-hold stylingFilm formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.
- conditioning agent
- film former
- polymer
- 11 Sunflower Extract
-
12
Rhodiola Rosea Root Extract
- botanical extract
-
13
Glyceryl Oleate
General function
An emulsifier that also softens, often added to make a cleanser feel less stripping.
Secondary ingredientLower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.
May suitFrizz-prone, damaged, or high-friction hairEmollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.
- emulsifier
- emollient
- ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
-
14
Phenoxyethanol
- preservative
- 15 Vegetable Glycerin Horsetail Leaf Extrac
-
16
Sage Leaf Extract
- botanical extract
- 17 Nettle Leaf Extract Rosemary Leaf Extract
- 18 Chamomile Flower Extract Lavender Flower Extract
-
19
Sodium Benzoate
- preservative
-
20
Fragrance
· Fragrance Oil</p>
General function
An undisclosed blend of scent ingredients. Regulations let it stay unlisted, so a fragrance-free product is the only way to be certain what is not in it.
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 routinesDeclared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.
- fragrance
- declared fragrance
What the whole list adds up to
- 3 conditioning agents
- 3 cleansers
- 2 polymers
- 2 emollients
- 2 mild anionic cleansers
- 2 film formers
- 2 botanical extracts
- 2 preservatives
- 1 solvent
- 1 gum
- 1 oil
- 1 salt
- 1 thickener
- 1 protein
Ingredient list captured 2026-10-07. Formulas change, so check the package in your hand when an ingredient matters to you.
Price · 8.5 oz
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 $18 at this size.
Show the price ladder
Where we’ve seen it1 listing · 1 store
-
Nature Skin Shop (natureskinshop.com)
$27.008.5 oz · $3.18/ozOct 15Lowest per oz
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
- 8.5 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.
- Seen at $27 is the price we have observed for the 8.5 oz. We need three stores before we call a price commonly seen.
- Good value under $10 comes from the 7 products we score as doing the same job as this one. A quarter of them cost less than $1.19/oz; at 8.5 oz that is $10. Under that line you are paying less than most of them.
- About $18 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 8.5 oz.
Formula
This is a complete shampoo formula. It is also above the range for shampoos per ounce, with 6 close matches selling for meaningfully less.
How the score is counted
- 6 products that do the same job cost less per ounce
- Costs more per ounce than 77% of the 1544 shampoos we’ve priced
- Covers 5 of the 7 things a shampoo should do
- Salon tier, sold at Brand website
- A working detergent systemWhat actually removes oil and product.3 pts
- Slip for detanglingReduces the force it takes to comb wet hair.2 pts
- A humectantBinds water into the hair.1 pt
- A hard-water chelatorBinds the minerals that dull hair in hard water.1 pt
- A pH adjusterBrings the formula to the acidic pH hair prefers.1 pt
- No detergent-dependent filmNothing that needs a clarifying wash to remove.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, for less
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.
- Sulfate-free
- Protein
- Curly method
- Function
- Also
- Sulfate-free
- Protein
- Curly method
- Function
- Also
- Fragrance-free
- Sulfate-free
- Gentle cleanse
- Function
- Also
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?
Similar results available for lessColour-treated hair who want washing without sulfates and gentle cleansing without foam
Worth skipping for anyone sensitive to fragrance, hair that stiffens on protein, or heavy buildup that needs a clarifying wash
Consider Rizos Curls Biotin Shampoo, for similar results 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.
More from Nature Skin Shop
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.
- 2 sources consulted for this product (1 manufacturer or regulatory, 0 retailer, 1 editorial), last checked 2026-10-17.
- Ingredient references are linked for 2 of 7 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 2026-10-17.
