Ultra Pure High-Potency Serum 5.0% Niacinamide - Siero Viso

Unremarkable but not terrible

My dermatologist recommended I use niacinamide to help reduce redness, and I've been using The Ordinary's 10% formulation for years which works pretty well. I decided to give Kiehl's version a try because I read online that 5% is actually a better formulation since too much niacinamide is bad for the skin and it's included in many products (including my lotion). This product is OK. It's a much more runny and stickier formulation than The Ordinary's. The instructions say to use 4-5 drops; honest, I think 3 is more than enough unless you have 5-10 minutes in the morning to wait for this to absorb. After 2 months, I haven't noticed a real difference to my skin. After I finish up this bottle, I'm going back to The Ordinary seeing as it does the same thing for a much lower price.

Que du bonheur !

Répond parfaitement à mes attentes

A must for oil control

This is one the best oil control products I’ve used and I have very oily skin this with a good moisturizer and Kiehl’s Milk Peel gets my skin right

waste of money

i had very high expectations on this product, i have been using it for while now and the qualitu of my skin has worstened. still need to finish the bottle, but very much waste of money.

Like it

Best niacinamide serum, high quality with lovely results

meh, disappointment

overpriced for lack of results. non greasy, non -fragrance

Addio sebo e imperfezioni!!

Un siero perfetto per quelli che hanno bisogno di ridurre il eccesso di sebo nella pelle e al stesso tempo ridurre le imperfezioni e irritazione. Tutto quello che me serviva è un solo prodotto.

Molto buono

Molto valido per pelli miste e sensibili, aiuta con imperfezioni e rossori. Forse di poco troppo leggero per mia opinione personale. ( Ottimo per chi tende ad avere la pelle più grassa)

Ne matifie pas

J'ai acheté cet article il y a quelques jours, car j'ai une peau mature mais mixte qui brille très rapidement. Je l'ai appliqué le matin et suis très déçue, car il n'atténue pas du tout la brillance, que du contraire. Je l'ai même essayé seul sans crème de jour mais c'est pareil . Je ne vois donc pas l'utilité de ce serum

Wasn’t KIEHLS fan until this product

A must buy for me. Evens out skin texture (got numerous compliments). Doesn’t irritate my sensitive skin.

Holy Grail

I picked up this bottle a little over two weeks ago and I can confidently say this is something that will stay in my routine forever. It works so well and quickly, and unlike other acne products I’ve tried this doesn’t make my skin peel as it's cleaning my skin. And a little goes a long way so it's a bang for your buck. 15/10 product!!!

Parfait sérum pour la peau grasse !

Ayant la peau grasse avec des boutons, je cherchais un sérum avec une bonne composition avec du niacinamide qui ne dépasse pas les 10%. Ça fait 2 semaines que j’utilise ce sérum matin et soir et le changement est fou ! Beaucoup moins de boutons, les marques de boutons sont en train de disparaître, mes pores sont resserrés, je n’ai plus le visage qui brille. Je suis bluffée et même mon mari voit la différence sur ma peau