Powerful Strength Line Reducing Concentrate - Siero viso antirughe

For bright looking skin use this serum

This serum is game changer for me. It brightens skin tone from dull to young look. It also reduces black spots from sun damage skin as well as reduces wrinkles.

Probably the best vitamin C serum

It was good for my sensitive skin. Unlike many other vitamin C serums, it wasn't sticky and absorbed so easily. It's really hydrating and moistorizing, I liked it. It may not be big enough in the standard size, but I was happy overall.

A potent vitamin C serum that brightens and revita

Absorbs quickly and one bottle lasts several weeks with daily use.Brightens skin tone and improves radiance over time. Great choice for dull skin and antioxidant boost. Some users may experience mild tingling but not lasting redness. Generally well-tolerated; rare irritation for sensitive skin.

My go-to Vitamin C serum for life

My absolute favorite Vitamin C serum. It goes on so nicely with no icky sitckiness. A single pump is all you need and it absorbs beautifully and goes on so smoothly. I have used other vitamin C serums but none are as easy and pleasant to use as Kiehl's. I follow this with my Kiehl's Ultra Facial Cream which is a lovely complement to any active serum. Lastly, I think this is very good value for the volume.

Cette marque est incroyable

C’est cher mais les produits de cette marque font des résultats incroyables

Pelle uniforme luminosa

L’unico siero che mostra risultati immediati: incarnato visibilmente uniforme, pelle più liscia e straordinariamente luminosa. Fa davvero la differenza.

Excellent serum for aging skin

This serum does wonders for the fine lines u def my eyes and in my forehead. It has a warm, smoothing texture and provides perfect hydration. My skin feels and looks healthier with daily use of this serum.

It’s promising

I was given this as a sample so I didn’t have enough to use for a long time, but it stuck with me. The texture is silky and absorbs quickly without feeling sticky or heavy, and it layers well under moisturizer and sunscreen. A little goes a long way, and it fits easily into a simple morning routine. Overall, a solid, well-formulated vitamin C option, make sure to hydrate after if you use topical Tretinoin also.

Best vitamin c

I have been using this vitamin C serum regularly and it really helps brighten my skin and improve texture. It absorbs well, layers nicely under moisturizer and sunscreen, and my skin looks more radiant with continued use.

Every day!

I don’t go a day without it! It really helps my skin texture!

Lightweight and fast‑absorbing

I’ve been using Kiehl’s Powerful‑Strength Vitamin C Serum, and it’s become one of my favorite steps in my morning routine. The texture is lightweight and absorbs quickly, so it layers beautifully under sunscreen. With 10.5% vitamin C (L‑ascorbic acid) and hyaluronic acid, it helps brighten my complexion, smooth fine lines, and fade dullness, giving my skin a noticeably more radiant and even tone over time. It’s strong enough to see results, yet gentle enough that my skin doesn’t feel irritated — even on days I’m also using acids or retinol in my routine. My skin looks healthier, more luminous, and smoother, and I can tell this serum really helps protect against environmental stressors too.

Helps with discoloration and uneven skin tone.

Loved this Vitamin C Serum. I have been suffering with discoloration and it has greatly improved that. I started once and day and built my way up to twice a day. So far am impressed and will repurchase