A gentle, protein-derived conditioning ingredient that adds softness and manageability to hair without heavy buildup.
Irritation
low
Source
semi-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 gentle, protein-derived conditioning ingredient that adds softness and manageability to hair without heavy buildup.
Irritation
low
Source
semi-synthetic
A gentle, plant-based conditioning ingredient that makes hair softer and less frizzy without heavy buildup.
Irritation
low
Source
semi-synthetic
A gentle, plant-derived conditioning ingredient that helps detangle hair and soften skin without heavy buildup.
Irritation
low
Source
semi-synthetic
Film Former
Hydroxypropyltrimonium Maltodextrin Crosspolymer
A gentle, starch-derived polymer that smooths hair and skin without heavy buildup or irritation.
Irritation
low
Source
semi-synthetic
Film Former
Hydroxypropyltrimonium Oxidized Potato Starch
A gentle, plant-derived ingredient that helps hair feel smooth and reduces frizz without heavy buildup.
Irritation
low
Source
semi-synthetic
Antistatic Agent
HYDROXYSTEARAMIDOPROPYL TRIMONIUM CHLORIDE
A gentle conditioning ingredient that reduces static and improves softness in hair and skin without heavy buildup.
Irritation
low
Source
synthetic
Antistatic Agent
Hydroxystearamidopropyl Trimonium Methosulfate
A gentle conditioning ingredient that reduces static and softens hair without heavy buildup.
Irritation
low
Source
synthetic
A synthetic hair-strengthening ingredient that helps repair damage and improve hair resilience, but research is limited to manufacturer studies.
Irritation
low
Source
synthetic
A gentle, plant-derived film former that leaves skin and hair feeling smooth and conditioned without heavy buildup.
Irritation
low
Source
semi-synthetic
Film Former
IPDI/PEG-15 SOYETHONIUM ETHOSULFATE COPOLYMER
A synthetic polymer that helps hair feel smooth and less frizzy, but may build up over time.
Irritation
low
Source
synthetic
Antistatic Agent
ISONONAMIDOPROPYL ETHYLDIMONIUM ETHOSULFATE
A gentle synthetic conditioning agent that helps detangle and soften hair without heavy buildup.
Irritation
low
Source
synthetic
A strong chemical used to break hair bonds for perms or straightening; effective but can be irritating and requires careful handling.
Irritation
high
Source
synthetic
A synthetic film-former that helps products stay put, but offers no active skincare benefit.
Irritation
low
Source
synthetic
A synthetic film former that helps makeup and sunscreen stay put longer, but offers no active skincare benefits.
Irritation
low
Source
synthetic
A synthetic polymer that helps products stay put, resist water, and feel flexible on skin or hair without heavy buildup.
Irritation
low
Source
synthetic
A mild synthetic thickener and conditioner that helps products feel creamy and rinse cleanly, but offers no active skincare benefits.
Irritation
low
Source
synthetic
Conditioning Agent
ISOSTEARAMIDOPROPYL DIMETHYLAMINE GLYCOLATE
A gentle conditioning ingredient that helps detangle and soften hair without heavy buildup.
Irritation
low
Source
semi-synthetic
Hair Conditioning Agent
ISOSTEARAMIDOPROPYL DIMETHYLAMINE LACTATE
A gentle, effective conditioning ingredient that improves hair feel and detangling without heavy buildup.
Irritation
low
Source
semi-synthetic
Antistatic Agent
Isostearamidopropyl Epoxypropyl Dimonium Chloride
A synthetic conditioning ingredient that helps detangle hair and reduce static, but may not suit very sensitive scalps.
Irritation
low
Source
synthetic
Antistatic Agent
Isostearamidopropyl Epoxypropylmorpholinium Chloride
A synthetic conditioning agent that reduces static and improves hair feel, but has limited research on long-term skin effects.
Irritation
low
Source
synthetic
Antistatic Agent
Isostearamidopropyl Ethyldimonium Ethosulfate
A gentle synthetic conditioner that smooths hair and reduces static without heavy buildup.
Irritation
low
Source
synthetic
Antistatic Agent
Isostearamidopropyl Ethylmorpholinium Ethosulfate
A gentle synthetic conditioner that helps detangle and soften hair without heavy buildup.
Irritation
low
Source
synthetic
A mild conditioning ingredient that helps reduce static and improve manageability in hair products, but is not a primary moisturizer.
Irritation
low
Source
synthetic
A synthetic conditioning agent that reduces static and improves feel in hair and skin products, generally well-tolerated but with limited research on long-term effects.
Irritation
low
Source
synthetic
A gentle conditioning ingredient that helps hair feel soft and smooth without heavy buildup, but may not suit very fine or oily hair types.
Irritation
low
Source
synthetic
A gentle surfactant that adds foam and conditioning without stripping the skin or hair.
Irritation
low
Source
synthetic
A synthetic conditioning agent that reduces static and softens hair, but may cause irritation or clog pores in sensitive individuals.
Irritation
moderate
Source
synthetic
A gentle conditioning ingredient that helps skin and hair feel smooth and soft without being heavy.
Irritation
low
Source
semi-synthetic
A gentle, modified silk protein that adds softness and shine to hair and skin without heavy buildup.
Irritation
low
Source
semi-synthetic
A gentle conditioning ingredient that reduces static and improves softness without heavy buildup.
Irritation
low
Source
synthetic
Film Former
ISOSTEAROYL TRIMELLITIC ANHYDRIDE/TRIMETHYLOLPROPANE COPOLYMER
A synthetic polymer that helps makeup and sunscreen stay put, but may feel heavy or tight on some skin types.
Irritation
low
Source
synthetic
Conditioning Agent
Isostearyl Behenamidopropyl Betainate Chloride
A mild, effective conditioning ingredient that helps detangle and soften hair while being gentle enough for sensitive skin.
Irritation
low
Source
semi-synthetic
A synthetic conditioning ingredient that helps reduce static and improve hair manageability, but is less common in modern formulations.
Irritation
low
Source
synthetic
Surfactant
Isostearyl Dilinoleamidopropyl Betainate Chloride
A gentle, conditioning surfactant that cleanses without stripping, making it a good choice for sensitive or dry skin and hair.
Irritation
low
Source
semi-synthetic
A gentle synthetic conditioner that reduces static and smooths hair without heavy buildup, suitable for most hair types.
Irritation
low
Source
synthetic
A synthetic antistatic ingredient that helps reduce frizz and flyaways in hair products, but it offers no long-term repair or moisturizing benefits.
Irritation
low
Source
synthetic
A synthetic conditioning ingredient that reduces static and softens hair, but may cause irritation for sensitive scalps.
Irritation
moderate
Source
synthetic
Surfactant
Isostearyl Ricinoleamidopropyl Betainate Chloride
A mild, conditioning surfactant that cleanses without stripping, making it a good choice for sensitive or dry skin and hair.
Irritation
low
Source
semi-synthetic
A gentle, protein-derived conditioning ingredient that helps soften hair and skin without heavy buildup.
Irritation
low
Source
semi-synthetic
A gentle botanical extract from the Juazeiro tree that may help soothe the scalp and condition hair, though scientific evidence is still limited.
Irritation
low
Source
natural
Keratin can temporarily smooth and strengthen hair, but results are not permanent and may not benefit all hair types.
Irritation
low
Source
natural
Hair Conditioning Agent
GELATIN/KERATIN AMINO ACIDS/LYSINE HYDROXYPROPYLTRIMONIUM CHLORIDE
A protein-rich conditioning complex that helps strengthen hair and reduce frizz, but may not suit very fine or low-porosity hair.
Irritation
low
Source
semi-synthetic
A gentle, protein-derived surfactant that cleanses without stripping, making it a good choice for sensitive skin or damaged hair.
Irritation
low
Source
semi-synthetic
Hair conditioning agent
CETEARAMIDOETHYLDIETHONIUM SUCCINOYL HYDROLYZED KERATIN
A modified keratin that helps repair and strengthen hair, but may not suit very fine or low-porosity hair if overused.
Irritation
low
Source
semi-synthetic
A traditional seed oil with good moisturizing potential, but limited modern research and a moderate chance of clogging pores for some skin types.
Irritation
low
Source
natural
A gentle conditioning ingredient that reduces static and improves hair manageability without heavy buildup.
Irritation
low
Source
synthetic
A synthetic hair conditioning agent that helps soften and detangle hair, but is not widely studied for long-term effects.
Irritation
low
Source
synthetic
Antistatic Agent
LAURAMIDOPROPYL ACETAMIDODIMONIUM CHLORIDE
A gentle, effective antistatic and conditioning ingredient that smooths hair without heavy buildup.
Irritation
low
Source
synthetic
A mild conditioning agent that helps detangle hair and soften skin, but may cause irritation for sensitive types at high concentrations.
Irritation
moderate
Source
synthetic
A gentle conditioning ingredient that helps detangle hair and reduce static without heavy buildup.
Irritation
low
Source
synthetic
A synthetic conditioning ingredient that helps detangle and soften hair, but may build up over time with frequent use.
Irritation
low
Source
synthetic
Conditioning Agent
LAURDIMONIUM HYDROXYPROPYL (ARGININE/GLUTAMIC ACID/ISOLEUCINE/LEUCINE/LYSINE/PHENYLALANINE/PROLINE/THREONINE/VALINE)
A gentle conditioning ingredient that helps detangle hair and soften skin without heavy buildup, suitable for sensitive types.
Irritation
low
Source
semi-synthetic
Surfactant
LAURDIMONIUM HYDROXYPROPYL DECYLGLUCOSIDES CHLORIDE
A gentle, conditioning cleanser that helps hair and skin feel soft without stripping natural oils.
Irritation
low
Source
semi-synthetic
Hair Conditioning Agent
LAURDIMONIUM HYDROXYPROPYL HYDROLYZED BARLEY PROTEIN
A gentle, plant-derived conditioning agent that adds softness and manageability to hair without heavy buildup.
Irritation
low
Source
semi-synthetic
Hair Conditioning Agent
LAURDIMONIUM HYDROXYPROPYL HYDROLYZED CASEIN
A gentle, protein-based conditioning ingredient that helps smooth hair and lightly moisturize skin without heavy buildup.
Irritation
low
Source
semi-synthetic
Hair Conditioning Agent
LAURDIMONIUM HYDROXYPROPYL HYDROLYZED COLLAGEN
A gentle conditioning ingredient that helps smooth hair and reduce static, but offers minimal skin benefits beyond temporary softness.
Irritation
low
Source
semi-synthetic
Hair conditioning agent
LAURDIMONIUM HYDROXYPROPYL HYDROLYZED KERATIN
A gentle, modified keratin that helps smooth and strengthen hair without the harshness of unmodified proteins.
Irritation
low
Source
semi-synthetic
Hair Conditioner
LAURDIMONIUM HYDROXYPROPYL HYDROLYZED SILK
A gentle, modified silk protein that adds softness and shine to hair and skin without heavy buildup.
Irritation
low
Source
semi-synthetic
Antistatic agent
LAURDIMONIUM HYDROXYPROPYL HYDROLYZED SOY PROTEIN
A gentle, protein-derived conditioning ingredient that helps reduce static and improve hair manageability without heavy buildup.
Irritation
low
Source
semi-synthetic
Hair conditioning agent
LAURDIMONIUM HYDROXYPROPYL HYDROLYZED WHEAT PROTEIN
A gentle, protein-based conditioning ingredient that smooths hair and reduces static without heavy buildup.
Irritation
low
Source
semi-synthetic