Noohee review for Hyal Reyouth Ampoule

I have been using this for months, and you can see that it's bigger than the usual serum/ampoule bottles. The texture is rather thick, and I think it would be perfect to be used with tools like guasha etc (and no, I don't use any tools beside my fingers), or when you want to massage your face. I use this as my hydrating serum. Tbh I'm not really sure about the effectiveness on it own. But again, I don't usually notice subtle change, and hydrating ingredients usually don't show dramatic change. What I know is, it does work as buffer for active ingredient like retinol, to prevent the side effects of the actives.