Peptides are short chains of amino acids that act as building blocks for proteins like collagen, elastin, and keratin. In skincare, they signal the skin to produce more of these vital proteins, leading to improved firmness, reduced wrinkles, and enhanced hydration.

Potential negatives of using peptides in skincare include mild irritation or allergic reactions in some individuals. Always perform a patch test before applying a peptide-containing product to the entire face to check for sensitivity.

No, peptides are not like steroids. Steroids are hormones that affect the entire body and can have significant side effects, whereas peptides are short amino acid chains that typically target specific processes, like collagen production in the skin, with a more localized effect.

The legality of peptides depends on their intended use and the regulations in specific regions. In skincare, peptides are generally legal when used in cosmetic products that adhere to safety standards and labeling requirements.