5 Stars
This is the best vitamin C serum and at 10% itās perfect for those using tretinoin or those who have sensitive skin. The packaging is now opaque glass in an airtight container, and Iāve experienced no oxidation by keeping it in the fridge. It has removed dark spots from my face and hands and next time Iām going to get a larger bottle and begin using it on my body. I have tried Skinceuticals vitamin C serum and I prefer the Timeless for efficacy, pump packaging, and price. Timeless also smells like hotdog water just like Skinceuticals! Save yourself some money and give Timeless a try!