Skincare experts advise on safe combinations of active ingredients

Dermatologists warn that improper combinations of active skincare ingredients can lead to redness, stinging, dryness, and damage to the skin barrier. Key combinations to approach with caution include:

• Retinoids and Alpha Hydroxy Acids (AHA): Since both act as exfoliants, using them together increases irritation risk. Experts suggest alternating use on different days.

• Retinoids and Benzoyl Peroxide: Benzoyl peroxide can deactivate certain retinoid molecules, potentially reducing their effectiveness for acne treatment. Users may consider using benzoyl peroxide in the morning and retinoids at night.

Additionally, specific products like The Ordinary 100% L-Ascorbic Acid Powder offer high concentrations of Vitamin C for brightening and anti-aging. However, this potent powder should not be used simultaneously with niacinamide or EUK 134; instead, it is recommended to use Vitamin C in the evening and those other ingredients in the morning.