Our independent clinical testing shows that after just 4 weeks of applying this product regularly, most people will already start noticing a difference in their skin texture within 7 days. For full results - reduce lines and wrinkles, using morning and day it will take 4 weeks.

This is a powerful and effective way to protect your skin from sun damage, but it doesn't replace the need for SPF. We have Universal C Skin Refiner SPF 50 that is the perfect 2 in 1 step to correct and protect your skin from UVA/B damage.

This lasts for one month if you use it in the morning and evening. It has a shelf life of 3-5 years un-opened.

20% is a very potent amount of vitamin C in its most active state, L-ascorbic acid. However, our Universal C Refiner Vitamin C Brightening Serum is formulated to keep most skin, even sensitive, able to use and see results quickly without any adverse effects. You may experience a tingling sensation when using our skin refiner, this usually dissipates after a few minutes. If the feeling is uncomfortable, cut back usage to once a day, and follow with Universal Pro-Bio Moisture Boost Cream

Our products are extensively tested for safety. However, some people may still experience a negative reaction. Cut your usage down to once a day and always follow with Universal Pro-Bio Moisture Boost Cream. If a severe reaction occurs, stop using immediately and call your dermatologist if necessary.