A gentle, biodegradable surfactant that effectively cleanses while being kind to sensitive skin.
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, biodegradable surfactant that effectively cleanses while being kind to sensitive skin.
Irritation
low
Source
semi-synthetic
A gentle, sulfate-free surfactant that effectively cleanses without stripping the skin's natural moisture barrier.
Irritation
low
Source
semi-synthetic
A gentler alternative to traditional sulfates that effectively cleanses without stripping the skin's moisture barrier.
Irritation
low
Source
synthetic
A mild, phosphate-based surfactant that cleanses without stripping the skin's natural moisture barrier.
Irritation
low
Source
synthetic
Sodium Lauryl Sulfate is a powerful cleanser that creates rich foam but can strip the skin's natural oils and cause irritation, especially for dry or sensitive skin types.
Irritation
moderate
Source
synthetic
A mild, coconut-derived surfactant that cleanses effectively without the irritation often associated with sodium lauryl sulfate (SLS).
Irritation
low
Source
semi-synthetic
Surfactant
SODIUM LAURYLGLUCOSIDES HYDROXYPROPYL PHOSPHATE
A gentle, plant-based surfactant that cleanses without stripping the skin, making it a great alternative to harsher sulfates.
Irritation
low
Source
semi-synthetic
Surfactant
Sodium Laurylglucosides Hydroxypropylsulfonate
A gentle, sulfate-free surfactant that cleans effectively without stripping the skin barrier.
Irritation
low
Source
semi-synthetic
A gentle, naturally-derived preservative booster that helps extend product shelf life without harsh chemicals.
Irritation
low
Source
natural
A mild, plant-derived surfactant that helps mix ingredients and improve product texture, but it's not a star active for skin benefits.
Irritation
low
Source
natural
Sodium Linoleate is a gentle, soap-like cleanser derived from linoleic acid that helps remove dirt and oil without stripping the skin.
Irritation
low
Source
semi-synthetic
A synthetic film-forming polymer that helps skincare products feel silky and last longer on the skin.
Irritation
low
Source
synthetic
A gentle synthetic polymer that improves product feel and wear without clogging pores or irritating skin.
Irritation
low
Source
synthetic
A mild, plant-derived cleanser that effectively removes dirt and oil without stripping the skin's natural moisture barrier.
Irritation
low
Source
natural
An abrasive mineral salt that helps polish teeth or exfoliate skin, but may be too harsh for sensitive skin or gums.
Irritation
moderate
Source
synthetic
A gentle preservative that uses silver ions to keep products fresh, but its long-term safety is still being studied.
Irritation
low
Source
synthetic
Sodium Malate is a gentle pH adjuster and mild AHA that helps keep products stable and skin slightly exfoliated without harshness.
Irritation
low
Source
semi-synthetic
A mild, polymer-based surfactant that boosts foam and reduces irritation, making it a smart choice for sensitive-skin cleansers.
Irritation
low
Source
semi-synthetic
A mild, polymer-based cleanser that effectively removes dirt and oil without stripping the skin barrier.
Irritation
low
Source
semi-synthetic
A gentle, plant-derived surfactant that cleanses without stripping the skin, ideal for sensitive or dry skin types.
Irritation
low
Source
semi-synthetic
A mild, plant-derived cleanser that effectively removes dirt and oil without stripping the skin, making it a great choice for sensitive or dry skin types.
Irritation
low
Source
natural
A gentle, plant-based alternative to synthetic chelators like EDTA that helps keep your products stable and effective.
Irritation
low
Source
natural
A gentle, sugar-based humectant that helps hydrate skin without irritation, though research is still emerging.
Irritation
low
Source
biotech
A silicon-modified seaweed derivative that may help firm and plump skin by supporting collagen and moisture.
Irritation
low
Source
semi-synthetic
A gentle, non-irritating cooling ingredient that adds a pleasant chill to skincare without the strong smell or sting of menthol.
Irritation
low
Source
semi-synthetic
Sodium metabisulfite is an effective preservative and antioxidant, but it can be irritating and may trigger allergic reactions in sensitive individuals.
Irritation
moderate
Source
synthetic
A synthetic pH adjuster with limited safety data; best avoided in leave-on products due to potential irritation concerns.
Irritation
moderate
Source
synthetic
Sodium Metaphosphate is a safe, effective chelating agent that helps maintain product stability and performance by binding metal ions.
Irritation
low
Source
synthetic
Sodium Metasilicate is an effective pH adjuster but can be highly irritating, especially in leave-on products or for sensitive skin.
Irritation
high
Source
synthetic
A mild synthetic cleanser that helps remove dirt and oil without stripping the skin, but may cause irritation for very sensitive skin types.
Irritation
moderate
Source
synthetic
A gentle, coconut-derived surfactant that cleans effectively without stripping the skin, ideal for sensitive or dry skin types.
Irritation
low
Source
semi-synthetic
A gentle, biodegradable surfactant that cleans without stripping the skin barrier.
Irritation
low
Source
semi-synthetic
A mild, coconut-derived surfactant that cleanses effectively without over-drying, making it ideal for sensitive and dry skin types.
Irritation
low
Source
semi-synthetic
A gentle, sulfate-free surfactant that cleanses effectively without stripping the skin's natural moisture barrier.
Irritation
low
Source
synthetic
A gentle, biodegradable surfactant that cleans effectively without stripping the skin, making it a popular alternative to harsher sulfates.
Irritation
low
Source
semi-synthetic
A mild, effective cleanser that's ideal for sensitive or dry skin, offering a creamy lather without irritation.
Irritation
low
Source
semi-synthetic
A gentle, effective cleanser that removes dirt and oil without stripping the skin, making it a popular sulfate alternative.
Irritation
low
Source
semi-synthetic
A mild, creamy cleanser that effectively removes dirt and oil without stripping the skin barrier.
Irritation
low
Source
semi-synthetic
A mild, sulfate-free surfactant that cleanses without stripping the skin, making it ideal for sensitive and dry skin types.
Irritation
low
Source
semi-synthetic
A gentle, sulfate-free surfactant that effectively cleanses without stripping the skin's natural moisture barrier.
Irritation
low
Source
semi-synthetic
A mild, effective cleanser that's ideal for sensitive or dry skin because it cleans without stripping.
Irritation
low
Source
semi-synthetic
A gentle, soap-free surfactant that cleans effectively while being kinder to sensitive skin than traditional sulfates.
Irritation
low
Source
semi-synthetic
A mild, sulfate-free surfactant that cleanses effectively without stripping the skin barrier, making it ideal for sensitive or dry skin.
Irritation
low
Source
semi-synthetic
A gentle synthetic antioxidant that helps defend skin from daily environmental damage, but research on its long-term benefits is still limited.
Irritation
low
Source
synthetic
A synthetic surfactant that helps cleanse and stabilize formulas, but may be drying for sensitive skin.
Irritation
moderate
Source
synthetic
Sodium methylparaben is an effective preservative that prevents microbial growth, but its safety has been debated due to concerns about endocrine disruption.
Irritation
low
Source
synthetic
A mild, taurine-based surfactant that cleanses effectively while being gentle on the skin barrier.
Irritation
low
Source
synthetic
A gentle synthetic surfactant that effectively cleanses without stripping the skin's natural moisture barrier.
Irritation
low
Source
synthetic
A gentle, sulfate-free cleanser that effectively removes dirt and oil while respecting the skin barrier.
Irritation
low
Source
semi-synthetic
Conditioning Agent
SODIUM MILKAMIDOPROPYL PG-DIMONIUM CHLORIDE PHOSPHATE
A gentle conditioning ingredient from milk lipids that helps soften hair and skin without heavy buildup.
Irritation
low
Source
semi-synthetic
Sodium molybdate is a trace mineral salt that may help support the skin's natural antioxidant defenses, but research on topical benefits is still emerging.
Irritation
low
Source
synthetic
A milder alternative to SLS that effectively cleanses but may still be drying for sensitive skin.
Irritation
moderate
Source
synthetic
Sodium Myristate is an effective cleanser but can be drying for sensitive or dry skin types.
Irritation
moderate
Source
synthetic
A gentle, coconut-derived surfactant that cleans effectively without over-drying, making it a good choice for sensitive or dry skin.
Irritation
low
Source
semi-synthetic
A mild, skin-friendly surfactant that cleanses effectively while respecting the skin barrier.
Irritation
low
Source
semi-synthetic
A gentle, amino-acid-based surfactant that cleanses without stripping the skin, making it a good choice for sensitive or dry skin types.
Irritation
low
Source
semi-synthetic
A mild, coconut-derived cleanser that removes impurities without stripping the skin barrier, ideal for sensitive and dry skin types.
Irritation
low
Source
semi-synthetic
A gentle, amino-acid-based surfactant that effectively cleanses while respecting the skin barrier.
Irritation
low
Source
semi-synthetic
A mild, amino-acid-based surfactant that cleanses effectively while being gentle on the skin barrier.
Irritation
low
Source
semi-synthetic
A mild, amino-acid-based surfactant that cleanses without stripping the skin, making it a good choice for sensitive or dry skin types.
Irritation
low
Source
semi-synthetic