Side by side
Hask Thicken + Biotin & Collagen Shampoo vs Vegamour GRO Revitalizing Shampoo
95% function match · 11 of the 13 functions we compared match Formula overlap 49%. Hask Thicken + Biotin & Collagen Shampoo and Vegamour GRO Revitalizing 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.
- Thicken + Biotin & Collagen Shampoo — colour-treated hair
- GRO Revitalizing 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
- Fast-oiling scalpsthat need a real reset wash
- 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
- Fast-oiling scalpsthat need a real reset wash
- Curly-method routinesno sulfates and no water-insoluble silicones
- Hard waterand swimmers dealing with mineral deposit
- Scents bother youthis product carries a scent
- Dry or damaged haira strong detergent system strips as it cleans
- Dry or very humid airwhere heavy humectants work against you
- Scents bother youthis product carries a scent
- Dry or damaged haira strong detergent system strips as it cleans
- Picking it up locallywe have it recorded in one channel only
More facts about each one
- sulfate-free
- silicone-free
- curly-method compatible
- sulfate-free
- silicone-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
Thicken + Biotin & Collagen Shampoo
Full ingredient list — Thicken + Biotin & Collagen Shampoo (28)
-
1
Water
- solvent
-
2
Sodium C14-16 Olefin Sulfonate
- olefin sulfonate cleanser
- cleanser
-
3
Cocamide MIPA
- secondary cleanser
- nonionic cleanser
- thickener
-
4
Sodium Chloride
- salt
- thickener
-
5
Cocamidopropyl Betaine
- amphoteric cleanser
- secondary cleanser
- cleanser
-
6
Glycerin
- humectant
-
7
Biotin
- vitamin
-
8
Hydrolyzed Collagen
- film former
- protein
- hydrolysed protein
-
9
Coffea Arabica (Coffee) Seed Oil
- oil
- emollient
-
10
Polyquaternium-7
- conditioning agent
- film former
- polymer
-
11
Panthenol
- humectant
- conditioning agent
- vitamin
-
12
Zea Mays (Corn) Starch
- starch
- powder
-
13
Guar Hydroxypropyltrimonium Chloride
- conditioning agent
- polymer
- gum
-
14
Hydroxypropyl Methylcellulose
- gum
- thickener
- film former
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
15
Citric Acid
- pH adjuster
- hard-water chelator
-
16
Glycol Distearate
- opacifier
- emollient
-
17
Sodium Hydroxide
- pH adjuster
-
18
Sodium Benzoate
- preservative
-
19
Sodium Salicylate
- preservative
- exfoliant
-
20
Trisodium Ethylenediamine Disuccinate
- hard-water chelator
- 21 Isopropanolamine
-
22
Fragrance
- fragrance
- declared fragrance
-
23
Amyl Salicylate
- fragrance
- named fragrance allergen
-
24
Eugenol
- fragrance
- named fragrance allergen
-
25
Linalool
- fragrance
- named fragrance allergen
-
26
Linalyl Acetate
- fragrance
- named fragrance allergen
-
27
Pogostemon Cablin Oil
- botanical extract
- essential oil
- fragrance
-
28
Tetramethyl Acetyloctahydronaphthalenes
- fragrance
Full ingredient list — GRO Revitalizing Shampoo (61)
-
1
Water
- solvent
-
2
Cocamidopropyl Betaine
- amphoteric cleanser
- secondary cleanser
- cleanser
-
3
Sodium Lauroyl Methyl Isethionate
- mild anionic cleanser
- cleanser
-
4
Sodium C14-16 Olefin Sulfonate
- olefin sulfonate cleanser
- cleanser
-
5
Sorbitan Oleate Decylglucoside Crosspolymer
- emulsifier
-
6
Sodium Methyl Oleoyl Taurate
- mild anionic cleanser
- cleanser
-
7
Sodium Cocoyl Isethionate
- mild anionic cleanser
- cleanser
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
8
Fragrance
- fragrance
- declared fragrance
-
9
Polyquaternium-7
- conditioning agent
- film former
- polymer
-
10
Sodium Chloride
- salt
- thickener
-
11
Citrus Limon (Lemon) Peel Oil
- botanical extract
- essential oil
- fragrance
-
12
Decyl Glucoside
- nonionic cleanser
- cleanser
-
13
Panthenol
- humectant
- conditioning agent
- vitamin
- 14 Mannitol
-
15
Phosphatidylcholine
- emulsifier
- emollient
-
16
Glycerin
- humectant
-
17
Biotin
- vitamin
-
18
Ximenia Americana Seed Oil
- oil
- emollient
-
19
SR-Spider Polypeptide-1
- protein
- film former
-
20
Aloe Barbadensis Leaf Juice
- humectant
- botanical extract
- gum
-
21
Cetyl Alcohol
- fatty alcohol
- emollient
- thickener
-
22
Sodium PCA
- humectant
-
23
Sodium Lactate
- humectant
- pH adjuster
-
24
Potassium Sorbate
- preservative
-
25
Sodium Benzoate
- preservative
-
26
Arginine
- amino acid
- humectant
-
27
Aspartic Acid
- amino acid
- pH adjuster
-
28
Sodium PCA
- humectant
-
29
Glycine
- amino acid
-
30
Ceramide NP
- ceramide
- emollient
-
31
Sorbitan Oleate
- emulsifier
-
32
Benzyl Benzoate
- fragrance
- named fragrance allergen
-
33
Citral
- fragrance
- named fragrance allergen
-
34
Hydroxycitronellal
- fragrance
- named fragrance allergen
-
35
Limonene
- fragrance
- named fragrance allergen
-
36
Linalool
- fragrance
- named fragrance allergen
-
37
Citric Acid
- pH adjuster
- hard-water chelator
-
38
Caffeine
- active
-
39
Xanthan Gum
- gum
- thickener
- film former
-
40
Alanine
- amino acid
-
41
Cetrimonium Chloride
- conditioning agent
- cleanser
-
42
Guar Hydroxypropyltrimonium Chloride
- conditioning agent
- polymer
- gum
-
43
Trisodium Ethylenediamine Disuccinate
- hard-water chelator
-
44
Linalyl Acetate
- fragrance
- named fragrance allergen
-
45
Tetrasodium Glutamate Diacetate
- hard-water chelator
-
46
Sodium Hydroxide
- pH adjuster
-
47
Tromethamine
- pH adjuster
-
48
Hydrochloric Acid
- pH adjuster
- 49 Dipotassium Phosphate
-
50
Potassium Phosphate
- salt
-
51
Serine
- amino acid
-
52
Valine
- amino acid
-
53
Threonine
- amino acid
-
54
Isoleucine
- amino acid
-
55
Proline
- amino acid
- 56 Phytosphingosine
-
57
Histidine
- amino acid
-
58
Phenylalanine
- amino acid
- 59 Nicotiana Benthamiana Hexapeptide-40 sh-Polypeptide-9
- 60 Nicotiana Benthamiana Hexapeptide-40 sh-Polypeptide-86
- 61 Nicotiana Benthamiana Octapeptide-30 sh-Oligopeptide-2
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.
Thicken + Biotin & Collagen Shampoo
Infused with biotin, collagen and coffee extract, this plumping shampoo transforms fine, flat strands into volumized, fuller hair
SupportedLeaves room for lift.Gives noticeable lift without weighing hair down
SupportedLeaves room for lift.Free of sulfates, parabens, phthalates, silicone, gluten, drying alcohol and artificial colors
SupportedGentler on colour and coils.Cruelty free and color-safe
SupportedMatches our researched record.
GRO Revitalizing Shampoo
VEGAMOURs GRO Revitalizing Shampoo is a vegan keratin formula that cleanses, bonds, restores and promotes thicker, fuller, shiny and silky hair.
SupportedMatches our researched record.
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 moisture and the scent.
Thicken + Biotin & Collagen Shampoo
several say it lathers and cleanses well while leaving hair feeling non-drying and not oily
general reviewersmany reviewers report fuller, thicker-looking hair and less breakage after regular use, including reviewers with thinning hair
reviewers with fine or thinning haira pleasant, long-lasting scent recurs as a highlight across reviewers
general reviewersGRO Revitalizing Shampoo
Scent is frequently praised as pleasant and not overpowering
general reviewersLong-term repeat customers (multi-year users) describe it as a routine essential for hair health
multi-year customersReviewers with fine or thinning hair report reduced shedding and a fuller, thicker look over months of use
users citing thinning/fine hair, long-term (5+ months) useSome reviewers say it helps with dry or brittle hair feel
users describing dry/brittle hairA minority of reviews are terse low-detail 4-5 star ratings with little substantive feedback
general reviewersPrice 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.
$0.50/oz vs $1.86/oz — Vegamour GRO Revitalizing Shampoo costs about 3.7× more per ounce than Hask Thicken + Biotin & Collagen Shampoo.
Every mark sits on one distribution because these are compared against the same set: 805 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.
Thicken + Biotin & Collagen Shampoo · GRO Revitalizing 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.
- 8 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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