The transparent ones is Vitamin C and the yellow ones is Vitamin A. Do note that we need to keep all these products away from light to ensure its potency.
What I liked about this product set is that the single-use bottle is solid and easy to twist open. It's strength is just nice for my skin even when applied directly after toner. My skin absorbed the product relatively well after some slight lighting massage as I normally used the full bottle in 1 use.
Typically, Vitamin C every morning, I might apply optional other essence after it (about 1min later) to boost the anti oxidant effects if I had the time, e.g. Astragalus or Astaxanthin essence that I previously bought so I don't waste them (the other stuff). Vitamin A is applied at night about twice a week.
I had slight allergy with Astaxanthin Essence (if I apply it directly, I get slight rashes / bumps about 30mins later, but it heals overnight after I applied aloe vera over it). Since I have 5 bottles of Astaxanthin Essence, in order not to waste my money, and it appears that if I apply the vitamin C before, my skin feels fine after with 2 drops of Astaxanthin Essence.
Overall, with this product my skin feels firm, hydrated and smooth after using it. Will definitely buy again when I am running out. I wish their Vitamin C ones could be sold alone so that it would work put better based on my usage.
Rating: 5 out of 5 because I loved it
I bought this from Lazada's official store: Lucenbase: Vitamin A & C Essence Set.