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
Capsaicin can temporarily stimulate circulation and create a warming sensation, but it is highly irritating and not suitable for sensitive skin or regular use in most skincare routines.
Irritation
high
Source
natural
Capsicum Annuum Resin creates a temporary warming sensation and mild skin plumping, but its high irritation potential makes it unsuitable for sensitive or reactive skin.
Irritation
high
Source
natural
A warming, circulation-boosting extract from habanero pepper that may temporarily plump skin but carries a high risk of stinging and irritation.
Irritation
high
Source
natural
A potent, warming plant resin that can temporarily boost circulation but carries a high risk of stinging and irritation, especially for sensitive skin.
Irritation
high
Source
natural
A warming plant extract that may temporarily boost circulation and skin firmness, but can cause stinging or irritation, especially for sensitive skin.
Irritation
high
Source
natural
A potent, warming plant powder that can temporarily boost circulation but poses a high risk of stinging and irritation, especially for sensitive skin.
Irritation
high
Source
natural