Kiehl's - Powerful-Strength Line-Reducing Concentrate, 12.5% Vitamin C

I’m the kind of person who loves to explore different skincare products, always on the lookout for that ‘holy grail’ serum that can truly transform my skin. Over the past 10 years, while I’ve rotated countless brands—from high-end options like Sunday Riley and Dr. Dennis Gross to budget finds on Amazon—I’ve always come back to one consistent favorite: Kiehl’s Powerful-Strength 12.5% Vitamin C Serum.In the world of skincare, it's recommended to switch up your products every few months to keep your skin from adapting and becoming less responsive. This practice has led me to try everything from the surprisingly effective yet short-lived Brandefy serum (great on the first go but lost its magic by the second bottle) to La Roche-Posay, which was promising but oxidized way too quickly.Kiehl’s, however, stands out for many reasons. Its silky texture is a pleasure to use, and it boasts one of the highest concentrations of L-ascorbic acid—a hard-to-beat 12.5%! This is the gold standard for vitamin C in skincare, known for its potency and efficacy. My skin absolutely loves it. Regular use has visibly faded sun spots and smoothed out fine lines around my eyes and on my neck.I’ve seen some incredible results, and after all these years, Kiehl's Vitamin C serum remains my go-to. It’s a product I truly believe in and will continue to purchase. For anyone looking to invest in their skin, this serum is a must-try. Trust me, your skin will thank you!

Recommended by my dermatologist for my aging skin. As a man I wanted something highly absorbent and non greasy.Been using it for several months and can see results especially along my forehead and neck lines. A bit expensive but you don’t need to use but a very small amount. Was hoping it would be a Black Friday sale item.

Tingly in a good way. Seems to be helping my skin appear more evenly toned. Follow up with moisturizer so it doesn’t dry out the skin too much.

Probably the best C serum I've used other than Mad Hippie. You can feel it working with that little bit of sting. It really makes my skin feel soft and helps with fine lines and sun spots. It goes on lightly and can be used every day. No scent. Fantastic value for the price.

small amount required. see results, subtle but works.

Boyfriend loves this stuff. Hydrates around his eyes and keeps wrinkles at bay. Great quality ingredients. Smells nice but not perfume. Pretty expensive for the small bottle size you get but we're ok with that because it does work.

Works for my skin making it tighter! Packaged well! Not greasy! Expensive but works

This is NOT the same product as purchased at ULTA! The cream was gritty, a different color, and made my skin itch. Do not purchase this expecting the same product.

Great texture has really improved my skin

Llevo usándolo un tiempo y ya no puedo vivir sin él, te da aspecto de porcelana.

When I applied it to my face and neck, the product gave a disturbingly prickly sensation. I have used an identical product from Kiehl's before, and the same thing has not happened, so I suspect this bottle I bought from Lastey on Amazon has expired.I wrote to Lastey, for a return request, but they refused to refund me and offered no options to resolve the issue. I am furious and frustrated that my right as a consumer is not protected by buying skincare products from a third-party seller if no product guarantee is in place.How is Amazon.sg going to protect consumers like me from untrustworthy vendors like Lastey?

Ich liebe es. Man spürt schon beim Auftragen, dass es wirkt. Trotz des hohen Preises schon zum zweiten Mal gekauft.

Buy this no matter how old you are. It is EXPENSIVE for sure, but is truly worth every penny. I am 54, look 35 and swear by its magic.Every man should have a product like this on his bathroom shelf. It is luxurious, smooth, and does wonders to your face.5 stars are not enough for what this product does.