Great way to test both of these products before spending over $100 for each of them .
I bought these as a recommendation from my Functional Medicine doc who only works with organic products, and I couldn't believe the full product was almost $100 (!!!), but if it's worth it, I'll do it, and this was a great way to test it without spending all that $ initially.  I have very oily skin, so I didn't use the Yellow one too much, but I really do like the Pink Glycolic Night Serum.
Rating: 5 stars