Powerful Strength Line Reducing Concentrate - Siero viso antirughe

Noticeable results

When I use this continuously, my pores get smaller and my mature skin looks smoother. I took one star off bc it can be irritating for a sensitive skin gal like me, depending on the skin condition of the day. I use it in the morning, 3-4 times per week. It's not greasy and has a matte finish. It doesn't affect my makeup/sunscreen application.

Powerful Brightening Serum That Leaves Skin Smooth

The Kiehl’s Powerful‑Strength Vitamin C Serum from Kiehl’s is one of those serums that immediately makes your skincare routine feel more results-focused. The texture is silky and slightly warming when applied, which makes the formula feel very active and effective on the skin. I love how lightweight yet nourishing it feels. It absorbs quickly and leaves the skin incredibly smooth and soft without any sticky residue. After a few uses, my complexion looks brighter, more even, and noticeably more radiant. What stands out most is how well it improves overall skin texture. My skin feels refined and healthy, and it gives that subtle glow that makes the complexion look naturally luminous. It also layers beautifully with moisturizer and sunscreen, making it easy to include in a morning routine. The packaging is simple and practical, and a small amount goes a long way, which makes the product last longer than expected. It truly feels like a high-performance vitamin C treatment designed to enhance radiance and improve the look of dull skin. If you’re looking for a serum that delivers brightening, smoother texture, and a healthy radiant glow, this is definitely a standout product in modern skincare. Serums like this are the reason vitamin C is such an essential step in a results-driven skincare routine.

love it!

I love this product... feel like it firms my aging skin and revitalizes it.

Just okay

I didn’t dislike this product but I also don’t think it made a huge difference in my skin. I felt mildly hydrating and played well with my other skincare steps but I can’t say I actually noticed brighter skin or less discoloration.

Poussée acnéique

J'ai acheté ce produit. Après 2 applications j'ai une peau rayonnante mais d'énormes boutons sur le visage. Je ne recommande absolument pas, une catastrophe.

Siero

Siero fantastico non unge e lascia la pelle morbidissima

Good for sensitive skin

Hands down the best vitamin c serum I’ve ever used. My skin is brighter and smoother after half of the bottle. It doesn’t sting at all for my sensitive skin

brighter days ahead

I love the Kiehl's Powerful‑Strength Vitamin C Serum, it has genuinely brightened my complexion and given my skin a healthy, radiant glow. It's been a staple in my routine for two years now. At first I was worried it could irritate my sensitive skin but I've never had any trouble. Experience has been great.

Super

Produit facile d’utilisation, j’ai remarqué un changement sur l’éclat de mon teint mais aussi sur l’hydratation. Ma peau paraît plus nette et plus lisse. Je recommande !

Great skin care

the skin products that I purchased Were very good.

Effective Morning Serum

My favorite part of this serum is the matte finish and feel. The serum goes on easily, helped clear, smooth, and hydrate my blotchy skin while providing a nice glow. I like to start my morning with the Vitamin C Serum!

Feels like sandpaper on my face but face glows

I like what is does to my skin - it makes it glow. However I wonder if the glow (blush) is due to irritation. I’m okay with the heat feeling but it also feels like sandpaper when I apply it to my face. It doesn’t feel that way on mu hand so i figure my face is too sensitive for it. However I really don’t have sensitive skin