Beauty ingredient research

Beauty ingredients explained in plain English

Browse the review database to understand what an ingredient is, what it does in a beauty formula, when it is useful, and when it deserves caution across skincare, haircare, bodycare, makeup, and more.

20769

Reviewed ingredients

524

Low-concern standouts

2884

Need usage caution

Showing 60 of 20,303
AllUV absorberUV filterabrasiveabsorbentacne treatmentactiveactive ingredientadhesivealkalizing agentamino acidanti-aginganti-androgenanti-cavityanti-cavity agentanti-inflammatoryanti-irritantanticariesanticavity agentantidandruffantifungalantimicrobialantioxidantantiperspirantantiplaqueastringentbarrier repairbarrier supportbarrier-repairbarrier-supportbinderbinding agentbiotechbiotechnologybond-builderbotanicalbotanical extractbotanical oilbotanical waterbrighteningbrightening agentbufferbuffering agentcell-communicating ingredientceramidechelating agentchemicalchemical intermediateclaycleansercleansingcleansing agentcolorantconditionerconditioningconditioning agentcooling agentcosmeticcosmetic additivecosmetic colorantcosmetic ingredientcosmetic pigmentcosmetic powdercosmetic-texturizercosmetic-waxcosmeticscrosslinking agentdelivery agentdelivery systemdenaturantdeodorantdeodorant agentdepigmenting agentdepilatorydepilatory agentdesensitizing agentdyedye intermediatedye precursordye-intermediateemollientemulsifierenzymeessential oilexfoliantexperimentaleyelashfermentfilm formerfilm-formerfilm-formingfilm-forming agentfirming agentfixativeflavoring agentformulationfragrancefragrance ingredientfunctional ingredientgashair carehair colorhair coloranthair conditionerhair dyehair removalhair-carehair-colorhaircarehumectantindustrialinsecticideintermediatelashlash carelash enhancerlash-and-browlip carelipidmakeupmarine extractmasking agentmicrobiomemicrobiome modulatormineralmoisturizernail carenail-careocclusiveoilopacifieropacifying agentoptical agentoral careotheroxidative dyeoxidative dye precursoroxidizing agentpH adjusterpain reliefpenetration enhancerpeptidepersonal careph adjusterpharmaceuticalpheromonepigmentplant oilplasticizerpolymerpolymer precursorprebioticprescription-drugpreservativepreservative boosterprobioticprocessing agentprocessing aidpropellantproteinpurifyingreducing agentretinoidscalp caresebum regulatorsebum-regulatorself-tannerself-tanningsensory additivesensory agentsensory modifiersiliconeskin barrierskin barrier supportskin conditionerskin conditioningskin conditioning agentskin lighteningskin protectantskin-conditioningskin-conditioning agentskin-identicalskin-identical ingredientskin-lighteningskin-lightening agentskincaresolventsoothingsoothing agentstabilizerstimulantsunscreensurfactantsyntheticsynthetic colorantsynthetic dyesynthetic resinsynthetic-coloranttexture enhancertexturizerthickenertoneruv-absorberuv-filtervasoactivevasodilatorviscosity controlviscosity controllingviscosity controlling agentvitaminwax

Anti-aging agent

Oligopeptide-142

Oligopeptide-142

4.0

A synthetic peptide that may help support collagen production and improve skin firmness, but human studies are still limited.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-143

Oligopeptide-143

4.0

A promising synthetic peptide that may help firm skin and reduce fine lines, but human studies are still limited.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-144

Oligopeptide-144

4.0

A lab-made peptide that may help firm skin and soften lines, but human studies are still limited.

Irritation

low

Source

synthetic

beautyskincarepeptide
Read ingredient review

Anti-aging agent

Oligopeptide-145 Dimer

Oligopeptide-145 Dimer

4.0

A synthetic peptide that may help firm skin and soften lines, but human studies are limited.

Irritation

low

Source

synthetic

beautyskincarepeptide
Read ingredient review

Anti-aging agent

Oligopeptide-146

Oligopeptide-146

4.0

Oligopeptide-146 is a lab-made peptide that may help support collagen and improve skin firmness, but research is still early.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-146 Dimer

Oligopeptide-146 Dimer

4.0

A synthetic peptide that may help firm skin and soften wrinkles, but research is still early.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-147

Oligopeptide-147

4.0

A synthetic peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness with low irritation risk.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-148

Oligopeptide-148

4.0

Oligopeptide-148 is a lab-made peptide that may help firm skin and reduce fine lines, but research is still emerging.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-149

Oligopeptide-149

4.0

A synthetic peptide that may help reduce fine lines and improve skin firmness, but research is still emerging.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-150

Oligopeptide-150

4.0

A lab-made peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness with minimal irritation risk.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-151

Oligopeptide-151

4.0

A lab-made peptide that may help support collagen and improve skin firmness, but human studies are limited.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-152

Oligopeptide-152

4.0

A synthetic peptide that may help reduce fine lines and improve skin firmness, but more human studies are needed to confirm its effects.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-153

Oligopeptide-153

4.0

Oligopeptide-153 is a lab-made peptide that may help firm skin and reduce fine lines, but research is still early and results vary.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-154

Oligopeptide-154

4.0

A synthetic peptide that signals skin cells to produce more collagen, helping reduce fine lines and improve firmness with consistent use.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-Aging Agent

Oligopeptide-156

Oligopeptide-156

4.0

Oligopeptide-156 is a lab-made peptide that may help reduce fine lines and improve skin firmness by signaling collagen production, but research is still emerging.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-158

Oligopeptide-158

4.0

Oligopeptide-158 is a lab-made peptide that may help support collagen and improve skin firmness, but research is still early.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-Aging Agent

Oligopeptide-158 Amide

Oligopeptide-158 Amide

4.0

A lab-made peptide that may help firm and smooth skin by signaling collagen production, but long-term human data is still limited.

Irritation

low

Source

synthetic

beautyskincarepeptide
Read ingredient review

Anti-aging agent

Oligopeptide-33

Oligopeptide-33

4.0

Oligopeptide-33 is a synthetic peptide that may help improve skin firmness and reduce fine lines, but research is still emerging.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-34

Oligopeptide-34

3.8

Oligopeptide-34 is a lab-made peptide that may help support collagen and firm skin, but research is still early.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-42

Oligopeptide-42

4.0

A synthetic peptide that may help support collagen and improve skin firmness, but research is still emerging.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-44

Oligopeptide-44

4.0

A synthetic peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness with consistent use.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-45

Oligopeptide-45

4.0

Oligopeptide-45 is a synthetic peptide that may help support collagen and improve skin firmness, but research is limited compared to more established peptides.

Irritation

low

Source

synthetic

beautyskincarepeptide
Read ingredient review

Anti-aging agent

Oligopeptide-48

Oligopeptide-48

4.0

A synthetic peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness with consistent use.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-49

Oligopeptide-49

4.0

Oligopeptide-49 is a lab-made peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness with consistent use.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-51

Oligopeptide-51

4.0

A synthetic peptide that may help improve skin firmness and reduce fine lines, but more human studies are needed to confirm its effectiveness.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-Aging Agent

Oligopeptide-52

Oligopeptide-52

4.0

A lab-made peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness with consistent use.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-56

Oligopeptide-56

4.0

Oligopeptide-56 is a lab-made peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness with consistent use.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Skin conditioning agent

Oligopeptide-56 Complex

Oligopeptide-56, Amido PEG-75 Methyl Ether

3.8

A lab-made peptide-polymer blend that may help plump and firm skin, but research is still early and benefits vary by formulation.

Irritation

low

Source

semi-synthetic

beautyskincarepeptide
Read ingredient review

Anti-aging agent

Oligopeptide-61

Oligopeptide-61

3.8

Oligopeptide-61 is a synthetic peptide that may help support skin firmness and reduce fine lines, but research is still emerging and results vary.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-Aging Agent

Oligopeptide-62

Oligopeptide-62

4.0

Oligopeptide-62 is a synthetic peptide that may help reduce fine lines and improve skin firmness by signaling collagen production, though human studies are limited.

Irritation

low

Source

synthetic

beautyskincarepeptide
Read ingredient review

Anti-aging agent

Oligopeptide-63

Oligopeptide-63

4.0

A synthetic peptide that may help support collagen and improve skin firmness, but human studies are limited.

Irritation

low

Source

synthetic

beautyskincarepeptide
Read ingredient review

Anti-aging agent

Oligopeptide-64

Oligopeptide-64

4.0

Oligopeptide-64 is a lab-made peptide that may help firm skin and reduce fine lines, but research is still emerging.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-65

Oligopeptide-65

3.8

Oligopeptide-65 is a synthetic peptide that may help support skin firmness and reduce fine lines, but research is still emerging and results vary.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-66

Oligopeptide-66

3.8

Oligopeptide-66 is a lab-made peptide that may help support collagen and improve skin firmness, but research is still early.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-67

Oligopeptide-67

4.0

Oligopeptide-67 is a lab-made peptide that may help support collagen and improve skin firmness, but research is still early.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-69

Oligopeptide-69

4.0

A lab-made peptide that signals skin to produce more collagen, but research is still early.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-71

Oligopeptide-71

4.0

Oligopeptide-71 is a synthetic peptide that may help support collagen and improve skin firmness, but research is still emerging.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-72

Oligopeptide-72

4.0

Oligopeptide-72 is a lab-made peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness with minimal irritation risk.

Irritation

low

Source

synthetic

beautyskincarepeptide
Read ingredient review

Anti-aging agent

Oligopeptide-73

Oligopeptide-73

4.0

Oligopeptide-73 is a synthetic peptide that may help reduce fine lines and improve skin firmness by signaling collagen production.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-74

Oligopeptide-74

4.0

Oligopeptide-74 is a lab-made peptide that may help support collagen and make skin look firmer, but research is still emerging.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-Aging Agent

Oligopeptide-75

Oligopeptide-75

4.0

Oligopeptide-75 is a synthetic peptide that signals skin cells to boost collagen, helping reduce fine lines and improve firmness with minimal irritation risk.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-76

Oligopeptide-76

4.0

A synthetic peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness with low irritation risk.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-79

Oligopeptide-79

3.8

A synthetic peptide that may help support collagen and improve skin firmness, but research is still early and results vary.

Irritation

low

Source

synthetic

beautyskincarepeptide
Read ingredient review

Anti-aging agent

Oligopeptide-80

Oligopeptide-80

4.0

Oligopeptide-80 is a lab-made peptide that may help reduce fine lines and improve skin firmness, but more human studies are needed to confirm its effectiveness.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-81

Oligopeptide-81

4.0

A synthetic peptide that may help firm skin and soften fine lines, but research is still early.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-82

Oligopeptide-82

4.0

A synthetic peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness with low irritation risk.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-86

Oligopeptide-86

4.0

Oligopeptide-86 is a synthetic peptide that may help support collagen and improve skin firmness, but research is still emerging.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Oligopeptide-87

Oligopeptide-87

4.0

Oligopeptide-87 is a lab-made peptide that may help support collagen and improve skin firmness, but research is still early.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-Aging Agent

Oligopeptide-88

Oligopeptide-88

4.0

A synthetic peptide that may help reduce fine lines and improve skin firmness, but more human studies are needed.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Skin conditioning agent

Oligopeptide-89

Oligopeptide-89

4.0

A synthetic peptide that supports skin barrier function and hydration, with low irritation potential.

Irritation

low

Source

synthetic

beautyskincarepeptide
Read ingredient review

Anti-aging agent

Oligopeptide-90

Oligopeptide-90

4.0

A lab-made peptide that may help support collagen and improve skin firmness, but human data is still limited.

Irritation

low

Source

synthetic

beautyskincarepeptide
Read ingredient review

Anti-aging agent

Oligopeptide-91

Oligopeptide-91

3.8

Oligopeptide-91 is a lab-made peptide that may help firm skin and reduce fine lines, but research is still early and results vary.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-wrinkle agent

Oligopeptide-91 with Botulinum-like Peptide

SR-Oligopeptide-91, Clostridium Botulinum Polypeptide-1

3.8

A synthetic peptide that may help soften expression lines by temporarily relaxing facial muscles, but results are subtle and not comparable to injectables.

Irritation

low

Source

synthetic

beautyskincarepeptide
Read ingredient review

Anti-aging agent

Oligopeptide-91 with SH-Polypeptide-1

Oligopeptide-91, SH-Polypeptide-1

4.0

A synthetic peptide duo that may help smooth fine lines and improve skin firmness, but more human studies are needed to confirm its effects.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review