Many listings and reviews describe serums as lightweight, fast-absorbing and non-greasy or non-drying, with a texture that layers well under moisturizers and makeup.
Common sizes shown include smaller treatment bottles like 0.5 fl oz, standard 1 fl oz bottles, and larger formulations up to 4 fl oz.
Product details commonly include cautions like “keep out of reach of children” and note eye irritation risk; some listings also specify “adult use only.”
Many listings include sustainability or certification notes such as cruelty-free/not tested on animals, recyclable packaging and specific seals like Leaping Bunny on some formulas.
The product details list a broad set of recommended types: oily, normal, combination, dry, mature, acne-prone, sensitive and extra sensitive.