Side by side
Function of Beauty Coily Hair Conditioner vs Function of Beauty Straight Hair Conditioner
50% function match · 5 of the 10 functions we compared match Formula overlap 88%. Function of Beauty Coily Hair Conditioner and Function of Beauty Straight Hair Conditioner 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.
- Coily Hair Conditioner — maximum slip
- Straight Hair Conditioner — 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”.
- Maximum slipfor hair that tangles the moment it is wet
- Dry, thirsty hairhumectants and emollients both sit up front
- Curly-method routinesno sulfates and no water-insoluble silicones
- Silicone-free routinesno silicones appear in the list
- Maximum slipfor hair that tangles the moment it is wet
- Dry, thirsty hairhumectants and emollients both sit up front
- Cuticle-smoothing pHa pH adjuster brings it to the acidic range hair prefers
- Vegan and cruelty-freeour researched record has it as both
- Scents bother youthis product carries a scent
- Very dry or damaged hairit contains fast-drying alcohol
- Dry or very humid airwhere heavy humectants work against you
- Scents bother youthis product carries a scent
- Curly-method routinesthese silicones need a detergent to remove
- Very dry or damaged hairit contains fast-drying alcohol
More facts about each one
- sulfate-free
- silicone-free
- curly-method compatible
- sulfate-free
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
Coily Hair Conditioner
Straight Hair Conditioner
Full ingredient list — Coily Hair Conditioner (37)
-
1
Water
- solvent
-
2
Cetyl Alcohol
- fatty alcohol
- emollient
- thickener
-
3
Behentrimonium Chloride
- conditioning agent
- cleanser
-
4
Behenyl Alcohol
- fatty alcohol
- emollient
- thickener
-
5
Glycerin
- humectant
-
6
Ethylhexyl Palmitate
- light ester
- emollient
-
7
Cetearyl Alcohol
- fatty alcohol
- emollient
- thickener
-
8
Hydrogenated Ethylhexyl Olivate
- light ester
- emollient
-
9
Ricinus Communis (Castor) Seed Oil
- oil
- emollient
-
10
Butyrospermum Parkii (Shea) Butter
- butter
- emollient
- sealant
-
11
Helianthus Annuus (Sunflower) Seed Oil
- oil
- emollient
-
12
Hydrolyzed Vegetable Protein
- film former
- protein
- hydrolysed protein
-
13
Quaternium-87
- conditioning agent
-
14
Capryloyl Glycerin/Sebacic Acid Copolymer
- film former
- emollient
-
15
Diheptyl Succinate
- light ester
- emollient
-
16
Ceteareth-20
- emulsifier
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
17
Phenoxyethanol
- preservative
-
18
Hydrogenated Olive Oil Unsaponifiables
- emollient
- sealant
-
19
Propylene Glycol
- humectant
- solvent
-
20
Guar Hydroxypropyltrimonium Chloride
- conditioning agent
- polymer
- gum
-
21
Caprylyl Glycol
- preservative
- humectant
-
22
Potassium Sorbate
- preservative
-
23
Panthenyl Ethyl Ether
- humectant
- conditioning agent
-
24
Citric Acid
- pH adjuster
- hard-water chelator
-
25
Disodium EDTA
- hard-water chelator
-
26
Hexylene Glycol
- solvent
- humectant
-
27
Phospholipids
- emollient
- emulsifier
-
28
Palmitic Acid
- emollient
- thickener
- 29 sodium benzotriazolyl butylphenol sulfonate
-
30
Sodium Benzoate
- preservative
-
31
Fragrance
- fragrance
- declared fragrance
-
32
Citral
- fragrance
- named fragrance allergen
-
33
Citronellol
- fragrance
- named fragrance allergen
-
34
Limonene
- fragrance
- named fragrance allergen
-
35
Linalool
- fragrance
- named fragrance allergen
-
36
Isopropyl Alcohol
- drying alcohol
- solvent
-
37
Yellow 6 (Ci 15895)
- colourant
Full ingredient list — Straight Hair Conditioner (44)
-
1
Water
- solvent
-
2
Cetyl Alcohol
- fatty alcohol
- emollient
- thickener
-
3
Behentrimonium Chloride
- conditioning agent
- cleanser
-
4
Behenyl Alcohol
- fatty alcohol
- emollient
- thickener
-
5
Cetearyl Alcohol
- fatty alcohol
- emollient
- thickener
-
6
Glycerin
- humectant
-
7
Quaternium-87
- conditioning agent
-
8
Persea Gratissima (Avocado) Oil
- oil
- emollient
-
9
Butyrospermum Parkii (Shea) Butter
- butter
- emollient
- sealant
-
10
Helianthus Annuus (Sunflower) Seed Oil
- oil
- emollient
-
11
Hydrolyzed Vegetable Protein
- film former
- protein
- hydrolysed protein
-
12
Cocos Nucifera (Coconut) Oil
- oil
- emollient
-
13
Cocos Nucifera (Coconut) Fruit Extract
- botanical extract
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
14
Rosmarinus Officinalis (Rosemary) Leaf Extract
- botanical extract
- antioxidant
-
15
Capryloyl Glycerin/Sebacic Acid Copolymer
- film former
- emollient
-
16
Ceteareth-20
- emulsifier
-
17
Phenoxyethanol
- preservative
-
18
Diheptyl Succinate
- light ester
- emollient
-
19
Propylene Glycol
- humectant
- solvent
-
20
Propoxytetramethyl Piperidinyl Dimethicone
- silicone
- conditioning agent
-
21
Dimethiconol Meadowfoamate
- silicone
- emollient
-
22
Caprylyl Glycol
- preservative
- humectant
-
23
Potassium Sorbate
- preservative
- 24 soybean glycerides
-
25
Guar Hydroxypropyltrimonium Chloride
- conditioning agent
- polymer
- gum
-
26
Trideceth-6
- emulsifier
- solubilizer
-
27
Panthenyl Ethyl Ether
- humectant
- conditioning agent
-
28
Disodium EDTA
- hard-water chelator
-
29
Hexylene Glycol
- solvent
- humectant
-
30
Phospholipids
- emollient
- emulsifier
-
31
C11-15 Pareth-7
- emulsifier
- solubilizer
-
32
PEG-60 Hydrogenated Castor Oil
- solubilizer
- emulsifier
-
33
Phenethyl Alcohol
- preservative
- fragrance
- 34 sodium benzotriazolyl butylphenol sulfonate
-
35
Sodium Benzoate
- preservative
-
36
Ascorbyl Palmitate
- antioxidant
-
37
Citric Acid
- pH adjuster
- hard-water chelator
-
38
Fragrance
- fragrance
- declared fragrance
-
39
Citronellol
- fragrance
- named fragrance allergen
-
40
Limonene
- fragrance
- named fragrance allergen
-
41
Linalool
- fragrance
- named fragrance allergen
-
42
Isopropyl Alcohol
- drying alcohol
- solvent
-
43
Green 5 (Ci 61570)
- colourant
-
44
Ext. Violet 2 (CI 60730)
- colourant
- direct dye
- violet dye
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.
Coily Hair Conditioner
Softness, flexibility, and easier detangling for coils
SupportedEasier detangling, less breakage.Sulfate-free, paraben-free, vegan, cruelty-free
SupportedGentler on colour and coils.
Straight Hair Conditioner
Softness and conditioning without buildup
Stated by brandSubjective feel varies by hair.Sulfate-free, paraben-free, cruelty-free, 100% vegan
Stated by brandOnly the brand’s testing shows this.
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.
Function of Beauty Straight Hair Conditioner draws complaints about tangling and dryness.
Coily Hair Conditioner
Defines curls and leaves hair silky/manageable without weighing it down
Exact Instacart reviewersProvides slip, softness, hydration, and easier detangling for coily/4C hair
Exact coily-conditioner review corpusInstacart URL says leave-in conditioner while heading/reviews identify the coily base conditioner; retailer naming mismatch retained
Exact product-page caveatStraight Hair Conditioner
Reviewers report soft, well-conditioned hair and a pleasant fragrance
Customizability (adding boosters) is called out as a valued feature
Some reviewers report hair thinning and increased tangling
Scalp irritation, dryness, and dandruff-like flaking are reported by some users
A notable share of reviewers report dryness, roughness, and breakage severe enough to switch products before finishing the bottle
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.
$0.91/oz vs $0.91/oz — within about the same cost per ounce.
Every mark sits on one distribution because these are compared against the same set: 689 conditioners 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.
Coily Hair Conditioner · Straight Hair Conditioner · All conditioners 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.
Your personalized hair plan
Tell us what’s going on with your hair, see what we understand, and get a plan built around it — with the reason behind every recommendation.
Free to start · $49.00 for your consultation and hair profile · No subscription · Nothing you must buy
Start your consultation
