Isntree - Hyper Niacinamide 20 Serum (x180) (Bulk Box)

Even though this has a high percentage of niacinamide, it does not irritate my skin. It’s effective when I apply it to tiny whiteheads that sometimes appear on my chin and by the third day or so they are gone. I imagine that if you have very sensitive skin then this should be used with caution.

I am currently on my second bottle and this serum has never failed me. It took a little while to see some changes but now I can definitely see that my skin has improved a lot. I have combination acne prone skin and I am currently still in my puberty phase so I can't say that I don't have any breakouts, however I have less than before and my pimples only stay a week or two before going away.

I started using this serum a few months ago (maybe 5) by only using it twice a week, due to its high percentage in niacinamide and I now use it daily (2 to 3 drops only in the morning). It leaves a soft finish on my skin and doesn't irritate it. It has also helped reducing the acne scars on my forehead (even tho I still have some on my chin and inner cheeks). It never caused me to have breakouts which makes it a really good serum.

Overall I would recommend you to buy it but you have to be patient because the results don't come in very fast, also after using it make sure to apply a good moisturizer

مره حلو احلى شي طلبته يجنن ارجع اشتريه مره ثانيه مره تحسنه بشرتي منه ❤️❤️❤️

جيدا جدا ممiتاز الجودة اكثر من رائع كمية ممتازة ورائحة مقبولة الحجم منيح

this serum make my face glow and fine lines less visible. don't not hesitate to buy it.

always used niacinamide but this one affected differently my dark spots started to fade out .No irritation being so high percentages.Totally recommended

excellent serum I use it every single morning and I buy it when there is a special discount

خلصت علبه وهذي ثاني علبه صراحه بدونه بشرتي تنهاااار انصحكم فيه

Thank you the product is good
I preciate
But the delivery is very ver slow
Specifically in my country
Shokran mara thania habaibi

The small size is pretty nice, since vitamen c oxadises fast.

Adoro la Niacinamida, y este es el único producto que hasta ahora he usado en tan alta concentración. Mi piel la tolera muy bien, y la verdad que no puedo estar más contenta. Tengo unas manchitas en la mejilla que me las está manteniendo a raya, incluso en verano! Generalmente en verano, a pesar del protector solar, las manchas se suelen marcar un poco más, pero este es el primer año que no me ha pasado. Me encanta! Sin duda repetiré cuando se me acabe.

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this serum has probably the highest concentration of niacinamide I've seen! along with zinc I literally said take my wallet LOL and yes it works amazingly!

“This serum is amazing! It contains powerful ingredients like niacinamide and hyaluronic acid, and my skin has never felt better. My complexion is more balanced, and I’ve noticed fewer breakouts. I highly recommend this for anyone looking to improve their skin texture and hydration.

The serum is clear, lightweight, and easy to absorb. I put it on after I apply toner. It's takes a while before you can really see a difference. It improves the texture of my skin and gives the lightening of dark spots/ Like it!