Let’s start with what I enjoy. 20% vitamin c and a stellar cast of supporting...

Let’s start with what I enjoy. 20% vitamin c and a stellar cast of supporting ingredients. Almost waterless. I like that not everyone likes an oil based Vitamin C serum. Has THD as the main form of Vitamin C in it. Less irritating and does help build collagen. My 44 year old skin is bouncier for sure. I use this nearly everyday since I bought it 2 months prior and I am only just hitting the halfway mark. So good bang for the buck ,price is steep but look at Allies of Skin or Revision Skincare both have pricey C serums. My only complaint and hence the 4 stars. An airless pump versus a dropper, protects the efficacy, which such a stellar formulation protecting it in an airless pump makes sense to me. It did not work as well at brightening my complexion and fading hyperpigmentation from post acne marks. So 2 complaints really.Still recommend if hyperpigmentation is not chief concern and elasticity and suppleness to skin is top priority.