A synthetic peptide that may help improve skin firmness and reduce fine lines, but more human studies are needed.
Irritation
low
Source
synthetic
Beauty ingredient research
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
A synthetic peptide that may help improve skin firmness and reduce fine lines, but more human studies are needed.
Irritation
low
Source
synthetic
Heptapeptide-41 is a promising synthetic peptide that may help firm skin and soften wrinkles, but research is still early and results vary.
Irritation
low
Source
synthetic
A synthetic peptide that may help reduce fine lines and improve skin firmness, but research is still early and results vary.
Irritation
low
Source
synthetic
Heptapeptide-7 is a synthetic peptide that signals skin to produce more collagen, helping soften fine lines over time with minimal irritation.
Irritation
low
Source
synthetic
A synthetic peptide that signals skin to produce more collagen, helping soften fine lines over time.
Irritation
low
Source
synthetic
Heptapeptide-9 is a synthetic peptide that may help firm skin and soften fine lines by signaling collagen production, with low irritation risk.
Irritation
low
Source
synthetic
Skin conditioning agent
HEPTASODIUM HEXACARBOXYMETHYL DIPEPTIDE-12
A synthetic peptide that may help reduce fine lines and improve skin firmness, but research is still emerging.
Irritation
low
Source
synthetic
Heptyl Acetate is a synthetic fragrance ingredient that adds a fruity, floral scent but offers no skincare benefits.
Irritation
low
Source
synthetic
Heptyl Butyrate is a synthetic fragrance ester that adds a fruity, floral scent to products; it is generally considered safe at low concentrations but offers no skincare benefits.
Irritation
low
Source
synthetic
Heptyl Formate is a synthetic fragrance ingredient that adds a fruity, floral scent to products, but it offers no skincare benefits and may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
A gentle, biodegradable surfactant that effectively cleanses without stripping the skin's natural moisture barrier.
Irritation
low
Source
natural
Heptyl Methacrylate is a synthetic film-forming ingredient that helps create durable, glossy coatings in nail products, but it may cause skin irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
A lightweight, non-greasy emollient that softens skin and improves product feel without clogging pores.
Irritation
low
Source
synthetic
A synthetic scent ingredient that adds a pleasant floral note but offers no skincare benefit and may cause sensitivity in some people.
Irritation
low
Source
synthetic
A synthetic fragrance ingredient that adds scent but offers no skincare benefits and may cause irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
Heptylidene Diacetate is a synthetic fragrance ingredient that adds a pleasant floral note, but it offers no skincare benefits and may be a concern for those sensitive to fragrance.
Irritation
low
Source
synthetic
Heptylparaben is an effective preservative but has raised some safety concerns due to its paraben family association; it is less common in modern formulations.
Irritation
low
Source
synthetic
A lightweight synthetic emollient that helps products glide on smoothly without a greasy feel.
Irritation
low
Source
synthetic
A gentle, non-greasy emollient that helps soften and smooth skin without clogging pores.
Irritation
low
Source
synthetic
A gentle, non-greasy emollient that softens skin and improves product texture without clogging pores.
Irritation
low
Source
synthetic
Soothing Agent
CHAMOMILLA RECUTITA/ROSMARINUS OFFICINALIS/SALVIA OFFICINALIS/THYMUS VULGARIS EXTRACT
A gentle botanical blend that may help calm irritation and protect skin from environmental stress, but individual sensitivity is possible.
Irritation
low
Source
natural
Antioxidant
LAVENDER FLOWER/(OLIVE/ORIGANUM VULGARE/ROSEMARY/THYME LEAF)/GOLDENSEAL EXTRACT
A botanical blend rich in antioxidants that may soothe skin, but its complexity and lack of standardization mean results can vary and irritation is possible for sensitive skin.
Irritation
moderate
Source
natural
Antimicrobial
MELALEUCA ALTERNIFOLIA LEAF/ROSMARINUS OFFICINALIS LEAF/THYMUS VULGARIS LEAF EXTRACT
A natural antimicrobial blend that can help with acne-prone skin but may cause irritation for sensitive types.
Irritation
moderate
Source
natural
Antioxidant
Coptis Chinensis Rhizome/Phellodendron Chinense Bark/Scutellaria Baicalensis Root/Gardenia Jasminoides Fruit Extract
A traditional herbal blend that may help calm skin and fight environmental stress, but research is mostly lab-based.
Irritation
low
Source
natural
Antioxidant
Angelica Acutiloba Root/Citrus Aurantium Amara Fruit/Coptis Japonica Root/Forsythia Viridissima Fruit/Gardenia Florida Fruit/Glycyrrhiza Glabra Root/Mentha Arvensis Leaf/Paeonia Lactiflora Root/Platycodon Grandiflorus Root/Rehmannia Glutinosa Root/Scutellaria Baicalensis Root Extract
A multi-herb blend that may help calm skin and fight free radicals, but research on the specific combination is limited.
Irritation
low
Source
natural
Antioxidant
Acorus gramineus root/stem/luffa cylindrica fruit/camellia sinensis leaf extract
A gentle botanical blend that may offer antioxidant and soothing support, but research on the specific combination is limited.
Irritation
low
Source
natural
Antioxidant
Angelica Acutiloba Root Extract, Paeonia Lactiflora Root Extract, Rehmannia Glutinosa Root Extract, Scutellaria Baicalensis Root Extract, Cnidium Officinale Rhizome Extract, Coptis Chinensis Rhizome Extract, Gardenia Jasminoides Fruit Extract, Phellodendron Chinense Bark Extract
A traditional herbal blend that may help calm irritation and provide antioxidant protection, though individual herb concentrations are unknown.
Irritation
low
Source
natural
Antioxidant
(CODONOPSIS TANGSHEN/DIOSCOREA JAPONICA) ROOT/ATRACTYLODES JAPONICA RHIZOME/PORIA COCOS/(DOLICHOS LABLAB/COIX LACRYMA-JOBI MA-YUEN/EURYALE FEROX/NELUMBO NUCIFERA) SEED EXTRACT
A traditional herbal blend that may offer antioxidant and soothing benefits, but lacks robust modern clinical evidence for skincare.
Irritation
low
Source
natural
Antioxidant
Panax Ginseng Root/Poria Cocos/Ophiopogon Japonicus Root/Cornus Officinalis Fruit/Rehmannia Chinensis Root/Dioscorea Batatas Root/Glycyrrhiza Glabra Root Extract
A gentle botanical blend that may help calm skin and provide antioxidant support, though research is limited for the specific mixture.
Irritation
low
Source
natural
Antioxidant
Cimicifuga Dahurica Root/Forsythia Virdissima Fruit/Glycyrrhiza Glabra Root/Paeonia Lactiflora Root/Platycodon Grandiflorus Root/Pueraria Lobata Root Extract
A gentle, antioxidant-rich botanical blend that may help calm skin and protect against environmental stress, though individual herb concentrations are unlisted.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant potential, but research is limited and benefits are not well-established.
Irritation
low
Source
natural
Hesperetin is a gentle antioxidant from citrus that helps defend skin against daily damage and may support a brighter, more even complexion.
Irritation
low
Source
natural
A promising antioxidant that combines citrus-derived hesperetin with lauric acid for better skin delivery and stability.
Irritation
low
Source
semi-synthetic
Hesperidin is a gentle plant antioxidant that helps defend skin against daily environmental damage and may support a more even skin tone.
Irritation
low
Source
natural
A gentle plant extract with antioxidant potential, but research is still early and benefits are not yet proven in human skin.
Irritation
low
Source
natural
A gentle, antioxidant-rich plant extract that may help calm skin and fight free radical damage, though human studies are limited.
Irritation
low
Source
natural
A gentle microalgae extract that may help calm skin and fight environmental stress, but research is still early.
Irritation
low
Source
natural
A gentle botanical extract that may help calm skin and fight oxidative stress, but research is still early.
Irritation
low
Source
natural
A gentle botanical root extract with traditional use for soothing skin, though modern research is still limited.
Irritation
low
Source
natural
A gentle, plant-based antioxidant extract that may help calm skin, but research is still early.
Irritation
low
Source
natural
A synthetic peptide that may help support collagen and skin firmness, but research is still early and results vary.
Irritation
low
Source
synthetic
A synthetic peptide that may help improve skin firmness and reduce fine lines, but research is still emerging.
Irritation
low
Source
synthetic
A gentle, non-greasy emollient that helps soften and smooth the skin without clogging pores.
Irritation
low
Source
synthetic
A gentle synthetic emollient that softens skin and improves product feel without clogging pores or causing irritation.
Irritation
low
Source
synthetic
A synthetic musk that adds a warm, floral scent to products; generally considered safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
A synthetic fragrance ingredient that adds scent but offers no skincare benefits; may cause irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
Hexadecane is a lightweight, non-greasy emollient that helps moisturize the skin and improve product texture, but it offers no active benefits beyond basic softening.
Irritation
low
Source
synthetic
Hexadecanolactone is a synthetic fragrance ingredient that adds a musky, sweet scent to products; it is generally considered safe at low concentrations but may cause irritation in sensitive individuals.
Irritation
low
Source
synthetic
Hexadecene is a lightweight synthetic emollient that helps products glide on smoothly without feeling greasy, but it offers no active skincare benefits.
Irritation
low
Source
synthetic
A synthetic film-former that helps products stay put on skin and hair, but it's not a star ingredient for most routines.
Irritation
low
Source
synthetic
A synthetic film-former that helps products stay put and resist water, but it's not a hero ingredient—just a functional helper.
Irritation
low
Source
synthetic
A lightweight silicone that smooths skin and reduces tackiness, generally well-tolerated and non-comedogenic.
Irritation
low
Source
synthetic
A gentle synthetic emollient that helps soften and smooth skin without clogging pores or causing irritation.
Irritation
low
Source
synthetic
A synthetic fragrance compound that adds a fresh scent but may cause irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
A synthetic fragrance ingredient that adds scent but offers no skin benefit; may cause irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
Hexadimethrine Chloride helps hair hold its shape and reduces static, but it can be drying or irritating for sensitive scalps.
Irritation
moderate
Source
synthetic
A synthetic scent ingredient that adds a warm, woody note but offers no skincare benefit and may cause sensitivity in some people.
Irritation
low
Source
synthetic
A synthetic fragrance ingredient that provides a warm, woody scent; generally considered safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
Fragrance Ingredient
HEXAHYDRO-TETRAMETHYL-METHANONAPHTHALENE-8-METHANOL
A synthetic scent ingredient that adds a warm, woody note to products but offers no skin benefit and may be unnecessary for sensitive skin.
Irritation
low
Source
synthetic
Fragrance Ingredient
HEXAHYDRO-TETRAMETHYL-METHANONAPHTHALENE-8-METHYL ACETATE
A synthetic fragrance ingredient that adds a warm, woody scent; generally safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic