A:Answer Yes. Serums with different benefits — like hydration, calming, or barrier support — can often be used in your routine in addition to or instead of the included vitamin C serum. The bundle version with multiple serums (vitamin C, retinol, and hyaluronic acid) shows that pairs work together to target multiple skincare concerns. However, how and when you use them matters for both safety and effectiveness. keep in mind LED light therapy works by penetrating light into the skin. Thick creams, oils, or heavy serums can block light penetration, which reduces effectiveness.Ideally, cleanse your face first so light can reach your skin. If you prefer to use serum, apply only a light, water-based serum that won’t block light.
