Butylene glycol is a humectant—a type of ingredient that draws water into the skin and helps it stay hydrated. It's a small, lightweight molecule commonly used in moisturizers to improve hydration without leaving a heavy feel on the skin.
Benefits
Increases skin hydration and moisture retention
Lightweight and absorbs quickly
Helps other active ingredients penetrate the skin more effectively
Science: Research demonstrates that butylene glycol, when combined with other humectants (like glycerin and hyaluronic acid) and occlusive ingredients in moisturizers, significantly improves skin hydration in both healthy skin and compromised skin conditions such as atopic dermatitis. It is recognized as a safe, effective humectant in dermatological formulations.
Gluconolactone is a gentle exfoliating acid that belongs to the polyhydroxy acid (PHA) family. It works by removing dead skin cells from the surface and is known for being less irritating than stronger acids, making it suitable for sensitive skin types.
Benefits
Gentle exfoliation that removes dead skin cells
Increases skin hydration and strengthens the skin barrier
Reduces sebum production and helps balance oily skin
May help reduce inflammation and support skin with sensitivity or irritation
Potential concerns
May cause mild irritation, redness, or dryness when first introduced, especially in sensitive skin
Can increase sun sensitivity — sunscreen is recommended during use
Science: Recent research shows gluconolactone effectively improves skin hydration, reduces sebum, and strengthens the skin barrier when used in chemical peels. Emerging evidence suggests it may have immune-regulating properties that could help calm inflammatory skin conditions, though this research is still in early stages.
