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Every public rating on one cosmetic, the places they disagree kept visible, and a single score whose weighting you control.

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We never blend a score that hides who disagrees. Funding model travels with every rating. Weights are computed at read time and never stored.

Cosmetics only · lead with safetyProduct data from public sources incl. Open Beauty Facts & EWG Skin Deep · their ratings never scraped or shown

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Function of Beauty — every product, every rater | Greenlens

Catalog/Function of Beauty

Function of Beauty

40 products in the catalog · functionofbeauty.com (visit site, opens in a new tab)

56Fair
avg. across 40 rated products · one axis, not the card composite: 30
products the raters split on

The average covers the ingredient-safety axis only, computed live from each product's raters — never a blended or stored brand score. Open a product to weight the axes yourself.

All products Conditioner 12 Hair Styling Aid 4 Hair Treatment Serum 14 Shampoo 8

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Best overall Worst overall Most contested A–Z

92
Function of Beauty
Thermal Protection #Hairgoal Booster Shots, 08 Fragrance Free (2020 formulation)
ExcellentOverall · your weights
9985
Data Robust · 7/7
4 raters · broadly agree
Weakest on Labor
Greenlens Ingredient ScanIndependent100
Greenlens Precautionary ScreenIndependent98
Greenlens Tolerance ScreenIndependent100
Cruelty-Free CertificationNonprofit85

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Lengthen #Hairgoal Booster Shots, 09 Fragrance Free (2020 formulation)

Function of Beauty

Lengthen #Hairgoal Booster Shots, 09 Fragrance Free (2020 formulation)

ExcellentOverall · your weights

9985

Data Robust · 7/7

4 raters · broadly agree

Weakest on Labor

Greenlens Ingredient ScanIndependent100
Greenlens Precautionary ScreenIndependent98
Greenlens Tolerance ScreenIndependent100
Cruelty-Free CertificationNonprofit85

Anti Frizz #Hairgoal Booster Shots 01, Fragrance Free (2020 formulation)

Function of Beauty

Anti Frizz #Hairgoal Booster Shots 01, Fragrance Free (2020 formulation)

ExcellentOverall · your weights

9985

Data Robust · 7/7

4 raters · broadly agree

Weakest on Labor

Greenlens Ingredient ScanIndependent100
Greenlens Precautionary ScreenIndependent98
Greenlens Tolerance ScreenIndependent100
Cruelty-Free CertificationNonprofit85

Color Protection #Hairgoal Booster Shots, Fragrance Free

Function of Beauty

Color Protection #Hairgoal Booster Shots, Fragrance Free

ExcellentOverall · your weights

9985

Data Robust · 12/12

4 raters · broadly agree

Weakest on Labor

Greenlens Ingredient ScanIndependent100
Greenlens Precautionary ScreenIndependent98
Greenlens Tolerance ScreenIndependent100
Cruelty-Free CertificationNonprofit85

#Bodygoal booster shot, Glow Kiwi Extract

Function of Beauty

#Bodygoal booster shot, Glow Kiwi Extract

ExcellentOverall · your weights

9985

Data Robust · 8/8

4 raters · broadly agree

Weakest on Labor

Greenlens Ingredient ScanIndependent100
Greenlens Precautionary ScreenIndependent98
Greenlens Tolerance ScreenIndependent100
Cruelty-Free CertificationNonprofit85

Soothe Scalp #Hairgoal Booster Shots, 02 Fragrance Free (2020 formulation)

Function of Beauty

Soothe Scalp #Hairgoal Booster Shots, 02 Fragrance Free (2020 formulation)

ExcellentOverall · your weights

9985

Data Robust · 7/7

4 raters · broadly agree

Weakest on Labor

Greenlens Ingredient ScanIndependent100
Greenlens Precautionary ScreenIndependent98
Greenlens Tolerance ScreenIndependent100
Cruelty-Free CertificationNonprofit85

Strengthen #Hairgoal Booster Shots, Fragrance Free (2020 formulation)

Function of Beauty

Strengthen #Hairgoal Booster Shots, Fragrance Free (2020 formulation)

ExcellentOverall · your weights

9985

Data Robust · 7/7

4 raters · broadly agree

Weakest on Labor

Greenlens Ingredient ScanIndependent100
Greenlens Precautionary ScreenIndependent98
Greenlens Tolerance ScreenIndependent100
Cruelty-Free CertificationNonprofit85

Curl Definition #Hairgoal Booster Shots, 07 (2020 formulation)

Function of Beauty

Curl Definition #Hairgoal Booster Shots, 07 (2020 formulation)

ExcellentOverall · your weights

9685

Data Robust · 10/10

5 raters · broadly agree

Weakest on Labor

EU Harmonised Classification (CLP Annex VI)Government90
Greenlens Ingredient ScanIndependent97
Greenlens Precautionary ScreenIndependent98
Greenlens Tolerance ScreenIndependent100
Cruelty-Free CertificationNonprofit85

Curl Definition #Hairgoal Booster Shots, 07

Function of Beauty

Curl Definition #Hairgoal Booster Shots, 07

ExcellentOverall · your weights

9685

Data Robust · 10/11

5 raters · broadly agree

Weakest on Labor

EU Harmonised Classification (CLP Annex VI)Government90
Greenlens Ingredient ScanIndependent97
Greenlens Precautionary ScreenIndependent98
Greenlens Tolerance ScreenIndependent100
Cruelty-Free CertificationNonprofit85

Volumize #Hairgoal Booster Shots, Fragrance Free (2020 formulation)

Function of Beauty

Volumize #Hairgoal Booster Shots, Fragrance Free (2020 formulation)

ExcellentOverall · your weights

9685

Data Robust · 10/10

5 raters · broadly agree

Weakest on Labor

EU Harmonised Classification (CLP Annex VI)Government90
Greenlens Ingredient ScanIndependent97
Greenlens Precautionary ScreenIndependent98
Greenlens Tolerance ScreenIndependent100
Cruelty-Free CertificationNonprofit85

Straight Hair Shampoo, Vanilla

Function of Beauty

Straight Hair Shampoo, Vanilla

GoodOverall · your weights

5685

raters split 42–90

Data Robust · 30/30

6 raters · split 42–90 on ingredient safety

EU Harmonised Classification (CLP Annex VI)Government90
Greenlens Ingredient ScanIndependent55
ANSES Endocrine DisruptorsGovernment80
Greenlens Precautionary ScreenIndependent42
Greenlens Tolerance ScreenIndependent82
Cruelty-Free CertificationNonprofit85

Curls with Benefits Define, Detangle & Shine Hair Spray

Function of Beauty

Curls with Benefits Define, Detangle & Shine Hair Spray

GoodOverall · your weights

5585

raters split 42–94

Data Robust · 41/42

7 raters · split 42–94 on ingredient safety

ANSES Endocrine DisruptorsGovernment60
Health Canada Ingredient HotlistGovernment85
EU Harmonised Classification (CLP Annex VI)Government70
Greenlens Ingredient ScanIndependent62
Greenlens Precautionary ScreenIndependent42
Greenlens Tolerance ScreenIndependent94
Cruelty-Free CertificationNonprofit85

Function of Beauty

Straight Hair Leave in Milk Mist

FairOverall · your weights

5485

raters split 40–94

Data Robust · 38/39

8 raters · split 40–94 on ingredient safety

Greenlens Precautionary ScreenIndependent42
EU Harmonised Classification (CLP Annex VI)Government70
IARC MonographsGovernment82
ANSES Endocrine DisruptorsGovernment40
Greenlens Ingredient ScanIndependent62
Greenlens Tolerance ScreenIndependent94
Health Canada Ingredient HotlistGovernment85
Cruelty-Free CertificationNonprofit85

Coily Hair Conditioner Base with Jamaican Black Castor Oil

Function of Beauty

Coily Hair Conditioner Base with Jamaican Black Castor Oil

FairOverall · your weights

5385

raters split 40–94

Data Robust · 35/38

7 raters · split 40–94 on ingredient safety

Health Canada Ingredient HotlistGovernment85
Greenlens Ingredient ScanIndependent62
EU Harmonised Classification (CLP Annex VI)Government70
Greenlens Precautionary ScreenIndependent42
ANSES Endocrine DisruptorsGovernment40
Greenlens Tolerance ScreenIndependent94
Cruelty-Free CertificationNonprofit85

Function of Beauty

Coily Hair Mask

FairOverall · your weights

5385

raters split 40–94

Data Robust · 36/36

7 raters · split 40–94 on ingredient safety

EU Harmonised Classification (CLP Annex VI)Government70
Greenlens Ingredient ScanIndependent62
Greenlens Precautionary ScreenIndependent42
Greenlens Tolerance ScreenIndependent94
ANSES Endocrine DisruptorsGovernment40
Health Canada Ingredient HotlistGovernment85
Cruelty-Free CertificationNonprofit85

Coily Hair Conditioner (2020 formulation)

Function of Beauty

Coily Hair Conditioner (2020 formulation)

FairOverall · your weights

5385

raters split 40–94

Data Robust · 35/35

7 raters · split 40–94 on ingredient safety

EU Harmonised Classification (CLP Annex VI)Government70
Greenlens Ingredient ScanIndependent62
Greenlens Precautionary ScreenIndependent42
Greenlens Tolerance ScreenIndependent94
ANSES Endocrine DisruptorsGovernment40
Health Canada Ingredient HotlistGovernment85
Cruelty-Free CertificationNonprofit85

Function of Beauty

Coily Hair Shampoo (2020 formulation)

FairOverall · your weights

5285

raters split 40–94

Data Robust · 38/38

7 raters · split 40–94 on ingredient safety

EU Harmonised Classification (CLP Annex VI)Government60
Greenlens Ingredient ScanIndependent62
Greenlens Precautionary ScreenIndependent42
Greenlens Tolerance ScreenIndependent94
ANSES Endocrine DisruptorsGovernment40
Health Canada Ingredient HotlistGovernment85
Cruelty-Free CertificationNonprofit85

Custom Coily Hair Shampoo Base with Flaxseed Oil

Function of Beauty

Custom Coily Hair Shampoo Base with Flaxseed Oil

FairOverall · your weights

5285

raters split 40–94

Data Robust · 38/38

7 raters · split 40–94 on ingredient safety

ANSES Endocrine DisruptorsGovernment40
Health Canada Ingredient HotlistGovernment85
EU Harmonised Classification (CLP Annex VI)Government60
Greenlens Ingredient ScanIndependent62
Greenlens Precautionary ScreenIndependent42
Greenlens Tolerance ScreenIndependent94
Cruelty-Free CertificationNonprofit85

Custom Curly Hair Shampoo Base with Chia Extract

Function of Beauty

Custom Curly Hair Shampoo Base with Chia Extract

FairOverall · your weights

5185

raters split 40–88

Data Robust · 38/38

7 raters · split 40–88 on ingredient safety

EU Harmonised Classification (CLP Annex VI)Government60
Greenlens Precautionary ScreenIndependent42
ANSES Endocrine DisruptorsGovernment40
Greenlens Ingredient ScanIndependent56
Greenlens Tolerance ScreenIndependent88
Health Canada Ingredient HotlistGovernment85
Cruelty-Free CertificationNonprofit85

Curly Hair Shampoo (2020 formulation)

Function of Beauty

Curly Hair Shampoo (2020 formulation)

FairOverall · your weights

5185

raters split 40–88

Data Robust · 38/38

7 raters · split 40–88 on ingredient safety

EU Harmonised Classification (CLP Annex VI)Government60
Greenlens Ingredient ScanIndependent56
Greenlens Precautionary ScreenIndependent42
Greenlens Tolerance ScreenIndependent88
ANSES Endocrine DisruptorsGovernment40
Health Canada Ingredient HotlistGovernment85
Cruelty-Free CertificationNonprofit85

Function of Beauty

Coily Hair Co Wash

FairOverall · your weights

5185

raters split 40–94

Data Robust · 24/24

6 raters · split 40–94 on ingredient safety

EU Harmonised Classification (CLP Annex VI)Government70
Greenlens Ingredient ScanIndependent62
Greenlens Precautionary ScreenIndependent42
Greenlens Tolerance ScreenIndependent94
ANSES Endocrine DisruptorsGovernment40
Cruelty-Free CertificationNonprofit85

Curly Hair Leave in Conditioner

Function of Beauty

Curly Hair Leave in Conditioner

FairOverall · your weights

5185

raters split 40–94

Data Robust · 35/35

6 raters · split 40–94 on ingredient safety

EU Harmonised Classification (CLP Annex VI)Government70
Greenlens Ingredient ScanIndependent62
Greenlens Precautionary ScreenIndependent42
Greenlens Tolerance ScreenIndependent94
ANSES Endocrine DisruptorsGovernment40
Cruelty-Free CertificationNonprofit85

Wavy Hair Leave in Treatment

Function of Beauty

Wavy Hair Leave in Treatment

FairOverall · your weights

5185

raters split 40–94

Data Robust · 28/29

6 raters · split 40–94 on ingredient safety

EU Harmonised Classification (CLP Annex VI)Government70
Greenlens Ingredient ScanIndependent62
Greenlens Precautionary ScreenIndependent42
Greenlens Tolerance ScreenIndependent94
ANSES Endocrine DisruptorsGovernment40
Cruelty-Free CertificationNonprofit85

Custom Curly Hair Conditioner Base

Function of Beauty

Custom Curly Hair Conditioner Base

FairOverall · your weights

5085

raters split 40–85

Data Robust · 37/37

7 raters · split 40–85 on ingredient safety

EU Harmonised Classification (CLP Annex VI)Government70
Greenlens Precautionary ScreenIndependent42
ANSES Endocrine DisruptorsGovernment40
Greenlens Ingredient ScanIndependent46
Greenlens Tolerance ScreenIndependent82
Health Canada Ingredient HotlistGovernment85
Cruelty-Free CertificationNonprofit85