Side by side
American Crew Boost Powder vs American Crew Fiber Grooming Foam
52% function match · 6 of the 13 functions we compared match Formula overlap 0%. American Crew Boost Powder and American Crew Fiber Grooming Foam share no ingredient among each other's most prominent — which does not stop them doing the same job.
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.
- Boost Powder — fragrance-free
- Fiber Grooming Foam — maximum slip
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”.
Compared at different sizes — 6.7 oz against 0.7 oz. Per-ounce prices favour the larger bottle.
- Fragrance-freeno fragrance (parfum) on the label
- Unscentedfree of strong smells
- Protein-sensitive hairthat stiffens when protein is added
- Curly-method routinesno sulfates and no water-insoluble silicones
- Maximum slipfor hair that tangles the moment it is wet
- Curly-method routinesno sulfates and no water-insoluble silicones
- Curl definitionfilm formers hold a clump together
- Fine hairthat flattens under most products
- Dry or very humid airwhere heavy humectants work against you
- Frizz in humid airno film former or silicone to hold it back
- If scent matters to younothing is added here
- Scents bother youthis product carries a scent
- Anyone who dislikes a castthe film formers here can set firm
- Dry or very humid airwhere heavy humectants work against you
More facts about each one
- sulfate-free
- silicone-free
- fragrance-free
- protein-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
Boost Powder
Full ingredient list — Boost Powder (5)
-
1
Water
- solvent
-
2
Propylene Glycol
- humectant
- solvent
-
3
Silica Silylate
- powder
- thickener
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
4
Citric Acid
- pH adjuster
- hard-water chelator
-
5
Sodium Benzoate
- preservative
Full ingredient list — Fiber Grooming Foam (28)
-
1
Water
- solvent
-
2
Butane
- propellant
-
3
Propane
- propellant
-
4
Polyquaternium-68
- conditioning agent
- film former
- polymer
-
5
Propylene Glycol
- humectant
- solvent
-
6
Polyquaternium-11
- film former
- polymer
- conditioning agent
-
7
Isobutane
- propellant
-
8
Ceteareth-20
- emulsifier
-
9
Cetrimonium Chloride
- conditioning agent
- cleanser
-
10
Cocodimonium Hydroxypropyl Hydrolyzed Wheat Protein
- conditioning agent
- film former
- protein
- hydrolysed protein
- 11 Ethane
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
12
Hydroxyacetophenone
- preservative
- antioxidant
-
13
Laureth-4
- emulsifier
-
14
Peg-7 Hydrogenated Castor Oil
- solubilizer
- emulsifier
-
15
Peg-90m
- emulsifier
-
16
Panthenol
- humectant
- conditioning agent
- vitamin
-
17
Sodium Chloride
- salt
- thickener
-
18
Tocopheryl Acetate
- antioxidant
- vitamin
-
19
Triethanolamine
- pH adjuster
-
20
Wheat Amino Acids
- protein
- amino acid
-
21
Ethylhexyl Methoxycinnamate
- UV filter
-
22
Fragrance
- fragrance
- declared fragrance
-
23
Benzyl Alcohol
- preservative
- solvent
-
24
Citral
- fragrance
- named fragrance allergen
-
25
Citronellol
- fragrance
- named fragrance allergen
-
26
Geraniol
- fragrance
- named fragrance allergen
-
27
Limonene
- fragrance
- named fragrance allergen
-
28
Linalool
- fragrance
- named fragrance allergen
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.
Boost Powder
Delivers anti-gravity volume, lift and thickness with a matte finish
SupportedLeaves room for lift.Can be layered with other styling products for enhanced texture control
Stated by brandCan’t be confirmed from label.
Fiber Grooming Foam
Medium long-lasting hold with a natural shine finish
SupportedStructure that lasts the day.Provides manageable volume, heat protection, and adds structure and body
SupportedLeaves room for lift.
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.
Boost Powder
Reviewers with thinning or fine hair say the powder provides lasting texture and volume all day.
Several reviewers value that the product is effective on hot, humid days without adding oiliness.
Multiple reviewers say a jar lasts a long time because only a small amount is needed per use.
Fiber Grooming Foam
Several reviewers say only a small amount is needed for effective all-day hold.
Reviewers say the foam adds noticeable volume and texture without leaving a sticky or greasy residue.
Reviewers with thinning or fine hair report it adds body without weighing hair down.
Price 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.
$1.90/oz vs $46.48/oz — American Crew Boost Powder costs about 24× more per ounce than American Crew Fiber Grooming Foam.
Boost Powder
Against 66 volumizers with a computable unit price.
Fiber Grooming Foam
Against 139 mousses 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.
Boost Powder · Fiber Grooming Foam · All volumizers 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.
- 10 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.
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