







✨ Unlock your skin’s ultimate hydration and resilience 🧴
The Bifida Barrier Ampoule by CUSKIN is a 50ml Korean skincare serum formulated with Bifida Ferment Lysate, Hyaluronic Acid, and Ceramide NP. Designed to hydrate deeply, improve skin elasticity, and strengthen the moisture barrier, this mild and gentle ampoule suits all skin types, including sensitive skin, making it an essential step for a radiant, youthful complexion.






R**T
Great Product!
This BIFIDA ampoule has become a really nice addition to my skincare routine. It definitely provides a good boost of hydration, and I like that it includes hyaluronic acid and ceramide. It feels very mild and gentle on my skin, which is important since I can sometimes be a little sensitive. After cleansing and toning, I just apply a few drops all over my face. It absorbs quickly and leaves my skin feeling smooth and moisturized. I'd recommend this if you're looking for a hydrating and gentle serum that seems to help with skin elasticity.
L**E
Amazing results
This Bifida serum has become a staple in my nighttime skincare routine. I live in the desert and my skin is always thirsty, so I love that this thick, somewhat sticky but deeply hydrating serum helps restore moisture and improve elasticity—something I've become more aware of now that I'm in my 40s. I apply it at night and consistently wake up to skin that feels smoother, firmer, and more refreshed.One of my favorite things about it is that it has no added fragrance, so it doesn’t irritate or clash with other products. The formula is rich, but it sinks in nicely overnight and leaves my skin looking rejuvenated by morning. It’s definitely a product I’ll keep reordering as part of my skincare arsenal because it's so effective and such a good value for the price.
N**K
OK
Great serum, hydrated my skin, and got rid of the rough texture.It was easy to apply, and my skin absorbed it all up.
T**E
Lightweight and Moisturizing
This serum feels light on my face and provides good hydration. My skin feels soft and well-moisturized after using it as part of my nighttime routine. I haven't noticed a big difference in skin clarity yet, but I’ve only been using it for about a week. So far, it’s been a gentle and nourishing addition to my skincare lineup.
H**Y
Gentle on skin
I love products for improving your skin barrier. I don't have sensitive skin, but I think that is because I use products like this regularly. They are great for alternating with harsher products, like acids and retinols, to help your skin recover.This serum is very gentle, absorbs quickly, and doesn't have any scent that I have noticed. My skin feel soft and it seems to boost my hydration, too.
D**1
Very pleased with this serum
This serum has really helped with my skin hydration, especially while recovering from the dry winter months. It really calms my skin and makes it smooth and bright. I really do think it helps repair the skin barrier.
M**N
May not be the best for Rosacea
I tried this product- liked the consistency and the fragrance- but it didn’t react well with my skin (as i have rosacea). I really feel that if I did not I would have wanted to continue using this product. So my review is really just a warning for those with this condition!!
A**Z
Serum Ampoule
Thia review is for "Bifida Barrier Ampoule, Mild and Moisturizing Korean Skin Care Face Serum Ampoule with Ceramide NP and Hyaluronic Acid for Hydration and Skin Elasticity, 50ml (1.69 Fl. Oz.)"I've only used this for a short time but so far my impression is favorable. It's non-irritating to my skin. It's thick without being too thick. I don't need a whole dropper for proper face coverage. The bottle is a good quality glass bottle that didn't break when I dropped it and I really appreciated it. It dries down a bit sticky but it's not a big deal as it's the first of many serums I apply. It doesn't have a negative effect on my makeup so I can live with it. It's fragrance free which is fine although I do love a good scented product. It's a bit pricey but not crazy pricey.
Trustpilot
1 week ago
1 month ago