Discover the new improved EGF Day Serum, scientifically formulated for deep hydration and visible age-defying results. This advanced serum features EGF, BIOEFFECT’s signature skin-rejuvenating ingredient, and is now infused with Panthenol (Vitamin B5) and a higher concentration of Hyaluronic Acid for intensified moisture and advanced skin
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20 ratings
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EGF Day serum
I use this every morning before I put my sunscreen or my makeup on and I absolutely love it. It makes my skin feel so moisturized and soft and looks so fresh.
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Brooke · August 9, 2026
Lightweight Day Serum!
I'm enjoying using the EGF Day serum whch is lighter than the regular serum and seems to absorb into my skin quicker. A little of the Hydrating cream on top of that and then sunscreen and I am good to go! I have very deep wrinkles from not protecting my skin when I was younger. I have found using Bioeffect products has helped my skin look and feel hydrated, lightened a few dark spots and my skin is smoother looking. I would recommend the day serum, Hydrating Cream and regular EGF serum!
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Kathleen · July 27, 2026
Serum 10/10
I have used a lot of high end serums. . and this by far the best! If your skin is sensitive Thai product is gentle and pairs so well with their moisturizer.