Yes! We test all our formulas for efficacy and comfort across a wide range of skin tones and types.

Yes - layering serums in the same routine is a great way to synergize ingredients that work well together to reach your skin goals. For instance, pairing our Powerful-Strength Vitamin C Serum and Micro-Dose Retinol Serum helps target wrinkles and skin firmness.

The difference between the three is how they're formulated. Serums are concentrated formulas that address specific concerns, like oiliness, hydration, or acne. Creams and lotions are thicker formulas that target the skin barrier. Creams are rich moisturizers, while lotions are more lightweight.

Serums should be applied before a lotion or cream. Depending on your skincare needs, you can also use a serum in place of a moisturizer if it contains hydrating ingredients, like Hyaluronic Acid or Glycerin. Always be sure to protect your skin against UV damage by using a daily SPF.

Yes – to ensure comfort, we include more sensitive-skin participants in our clinical tests than standard testing guidelines recommend.