Side by side
Rizos Curls Biotin Shampoo vs Rizos Curls Hydrating Shampoo
76% function match · 9 of the 13 functions we compared match Formula overlap 21%. Rizos Curls Biotin Shampoo and Rizos Curls Hydrating Shampoo share 4 ingredients among each other's most prominent.
Which of these fits your hair?
We check your pattern, moisture need, scalp, fragrance tolerance, weight sensitivity and more against each formula — and say which one lines up.
Your profile at a glance
- Your answers appear here
- Your answers appear here
- Your answers appear here
- Your answers appear here
When each one is the right call
What each formula is built for, from its own ingredient list.
- Biotin Shampoo — colour-treated hair
- Hydrating Shampoo — colour-treated hair
Side by side
Every trait, aligned
One row per trait, read from each product’s own ingredient list and record. A dash means we have not researched that field for that product — it is not a “no”.
- Colour-treated hairthat fades faster in a sulfate wash
- Protein-hungry hairthat stretches and stays stretched when wet
- Curly-method routinesno sulfates and no water-insoluble silicones
- Hard waterand swimmers dealing with mineral deposit
- Colour-treated hairthat fades faster in a sulfate wash
- Protein-sensitive hairthat stiffens when protein is added
- Fast-oiling scalpsthat need a real reset wash
- Dry, thirsty hairhumectants and emollients both sit up front
- Scents bother youthis product carries a scent
- Protein-sensitive hairthat goes stiff or straw-like on protein
- Picking it up locallywe have it recorded in one channel only
- Scents bother youthis product carries a scent
- Dry or damaged haira strong detergent system strips as it cleans
- Hair that needs proteinthere is none in this list
More facts about each one
- sulfate-free
- silicone-free
- curly-method compatible
- sulfate-free
- silicone-free
- protein-free
- curly-method compatible
Facts as we recorded them. A dash means we have not researched that field for that product — it is not a "no".
The bottom line
The bottom line depends on your hair
Which of these two suits you is a question about your hair, not about them. The consultation answers it — and tells you what your routine needs around it.
$49.00 once, for your consultation and hair profile. No subscription, no required purchases.
The detail behind the table
Where the readings above come from: the ingredient lists themselves, each brand’s claims checked against them, what owners report, and cost per ounce in context.
Shared and distinct ingredients
Shared and distinct ingredients
Computed from the ingredient lists as printed. "Shared" means both lists carry it; where it sits on each label is stated, because position is what tells you how much.
What both formulas carry
What only one of them carries
Biotin Shampoo
Full ingredient list — Biotin Shampoo (36)
-
1
Water
- solvent
-
2
Decyl Glucoside
- nonionic cleanser
- cleanser
-
3
Sodium Lauroyl Sarcosinate
- mild anionic cleanser
- cleanser
-
4
Biotin
- vitamin
-
5
Elaeis Oleifera (Batana) Kernel Oil
- oil
- emollient
-
6
Hydrolyzed Oat Protein
- film former
- protein
- hydrolysed protein
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
7
Rosmarinus Officinalis (Rosemary) Leaf Oil
- botanical extract
- essential oil
- fragrance
-
8
Moringa Oleifera Seed Oil
- oil
- emollient
-
9
Panthenol
- humectant
- conditioning agent
- vitamin
-
10
Mentha Piperita (Peppermint) Oil
- botanical extract
- essential oil
- fragrance
-
11
Eucalyptus Globulus Leaf Oil
- botanical extract
- essential oil
- fragrance
-
12
Citrus Limon (Lemon) Peel Oil
- botanical extract
- essential oil
- fragrance
-
13
Medicago Sativa (Alfalfa) Extract
- botanical extract
-
14
Aloe Barbadensis Leaf Juice
- humectant
- botanical extract
- gum
-
15
Mentha Viridis (Spearmint) Leaf Oil
- fragrance
- botanical extract
-
16
Hydrolyzed Pea Protein
- film former
- protein
- hydrolysed protein
-
17
Polyquaternium-10
- conditioning agent
- film former
- polymer
-
18
Guar Hydroxypropyltrimonium Chloride
- conditioning agent
- polymer
- gum
-
19
Caramel
- colourant
-
20
Glycol Distearate
- opacifier
- emollient
-
21
Glycerin
- humectant
-
22
Fragrance
- fragrance
- declared fragrance
-
23
Menthol
- fragrance
- active
-
24
Stearic Acid
- emulsifier
- thickener
- fatty alcohol
- 25 Ethylene Glycol
-
26
Citric Acid
- pH adjuster
- hard-water chelator
-
27
Sodium Laurate
- light ester
- emollient
-
28
Potassium Sorbate
- preservative
-
29
Sodium Benzoate
- preservative
-
30
Disodium EDTA
- hard-water chelator
-
31
Ethylhexylglycerin
- preservative
- emollient
-
32
Phenoxyethanol
- preservative
-
33
Sodium Sulfite
- antioxidant
- preservative
-
34
Vanillin
- fragrance
-
35
Amyl Cinnamal
- fragrance
- named fragrance allergen
-
36
Limonene
- fragrance
- named fragrance allergen
Full ingredient list — Hydrating Shampoo (22)
-
1
Water
- solvent
-
2
Sodium C14-16 Olefin Sulfonate
- olefin sulfonate cleanser
- cleanser
-
3
Cocamidopropyl Betaine
- amphoteric cleanser
- secondary cleanser
- cleanser
-
4
Sodium Cocoyl Isethionate
- mild anionic cleanser
- cleanser
-
5
Cocamidopropylamine Oxide
- amphoteric cleanser
- secondary cleanser
- cleanser
-
6
Sodium Lauroyl Sarcosinate
- mild anionic cleanser
- cleanser
-
7
Glycereth-26
- humectant
- solvent
-
8
Moringa Oleifera Seed Oil
- oil
- emollient
-
9
Butyrospermum Parkii (Shea) Butter
- butter
- emollient
- sealant
-
10
Panthenol
- humectant
- conditioning agent
- vitamin
-
11
Hydroxypropyl Guar Hydroxypropyltrimonium Chloride
- conditioning agent
- polymer
- gum
-
12
Behentrimonium Chloride
- conditioning agent
- cleanser
-
13
Glycerin
- humectant
-
14
Cetyl Alcohol
- fatty alcohol
- emollient
- thickener
-
15
Glycol Distearate
- opacifier
- emollient
-
16
Polyquaternium-7
- conditioning agent
- film former
- polymer
-
17
Stearyl Alcohol
- fatty alcohol
- emollient
- thickener
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
18
Disodium EDTA
- hard-water chelator
-
19
Citric Acid
- pH adjuster
- hard-water chelator
-
20
Phenoxyethanol
- preservative
-
21
Ethylhexylglycerin
- preservative
- emollient
-
22
Fragrance
- fragrance
- declared fragrance
Claims check
What each brand says, against what each formula shows
Claims are quoted from each brand. We only mark one supported, partly supported, or conflicting when that product’s ingredient list actually speaks to it.
Biotin Shampoo
Proven to make your hair fuller, softer, shinier and more nourished
Stated by brandOnly the brand’s testing shows this.
Hydrating Shampoo
Champu hidratante para el cabello rizado y ondulado
Stated by brandCan’t be confirmed from label.Latina-owned, clean formula
Stated by brandCan’t be confirmed from label.
What owners say
What people report
Recurring themes our researchers wrote in their own words from sourced reviews. We do not store or scrape star ratings, and we never balance one product’s themes against another’s by inventing them.
Both praised for the scent and how it cleanses.
Biotin Shampoo
Leaves hair feeling clean and light after just a couple of uses
Scent is frequently called out as a favorite feature
Cleanses without stripping natural scalp oils, described as gentle on the scalp with daily-ish use
Reviewers report noticeable hair growth and reduced dryness/stagnation over weeks of use
including Spanish-speaking reviewersRich lather from a small amount of product; users caution a little goes a long way or hair can feel greasy
curly-hair usersHydrating Shampoo
Effective at cutting wash-day time by reducing tangling during cleansing
curly-hair usersSome loyal repeat buyers use it as their sole cleanser, skipping a separate co-wash step
long-term usersFragrance is repeatedly called out as a standout positive
generalReviewers report visibly healthier-looking, glossier curls with regular use
curly-hair usersA subset of reviewers with drier hair say it takes continued use to see improvement rather than an immediate fix
dry/coarse hairPrice check
Cost per ounce, in context
Cost per ounce against every product of this type we have priced, each at the size it is most often sold in. Value labels are computed from that percentile and from how many products that do the same job cost less; they are comparisons, not judgements about a brand.
$2.20/oz vs $2.20/oz — within about the same cost per ounce.
Every mark sits on one distribution because these are compared against the same set: 817 shampoos with a computable unit price.
Computed from cost per ounce against every product of this type we have priced, and from how many products that do the same job cost less. It is a comparison, not a judgement about the brand.
Compare with something else
Close formulas to each of these, as their own comparison pages.
Biotin Shampoo · Hydrating Shampoo · All shampoos in the library
How this page was made
- This page is assembled from the same researched records the individual product pages render: identity, each ingredient list as printed, each brand's own claims, dated price observations, and review themes written in our researchers' own words. Nothing on it is written per comparison.
- We do not rank these against each other. Which of them suits you depends on your hair, and that is what the consultation works out.
- The formula similarity percentage is a stored, precomputed number: position-weighted overlap of the two ingredient lists blended with agreement on the attributes we derive. It measures how alike two formulas are, not how well either works.
- 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.
- 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.
- 11 sources were consulted across the products on this page.
- Ingredient order tells you relative amount only above roughly 1%. Prices are observations on the dates shown and change without notice. We do not sell these products and take no placement fees.
- This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.
Still unsure? Take your consultation or browse more products.
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