I’m skeptical about a lot of products because of how sensitive my skin is—and how picky I am. I got a deluxe sample of Kiehl’s Powerful-Strength Vitamin C Serum from #ulta in an 18 piece beauty bag that came free with my purchase. I’ve been experimental lately because let’s face it, I’m in my 30s and it’s long past time for me to start taking better care of my skin. After reading that it helped with fine lines I decided to give it a go. I noticed a difference on just day FOUR! 🤯 Needless to say I now own this full size serum, and use it every morning and every night as part of my skincare routine. It isn’t just for fine lines, it moisturizes, gives your skin a healthy look and feel, and is made with ingredients I feel 100% comfortable putting on my skin. I’ve ... MoreI’m skeptical about a lot of products because of how sensitive my skin is—and how picky I am. I got a deluxe sample of Kiehl’s Powerful-Strength Vitamin C Serum from #ulta in an 18 piece beauty bag that came free with my purchase. I’ve been experimental lately because let’s face it, I’m in my 30s and it’s long past time for me to start taking better care of my skin. After reading that it helped with fine lines I decided to give it a go. I noticed a difference on just day FOUR! 🤯 Needless to say I now own this full size serum, and use it every morning and every night as part of my skincare routine. It isn’t just for fine lines, it moisturizes, gives your skin a healthy look and feel, and is made with ingredients I feel 100% comfortable putting on my skin. I’ve already recommended it to several of my friends and wanted to come on here and recommend it to you all as well! Try it out, I think you’ll love it as much as I do! Edit: I accidentally added this photo but I’ll update it in just a few minutes.😆 My sample tube is in this photo though!

Using a Vitamin C serum + sunscren on your daily skincare routine is a great way to protect your skin from damaging free radicals caused by UV exposure. Vitamin C is a powerful antioxidant. Recently I bought The Powerful-Strength Line-Reducing Concentrate from @kiehls. It has 12.5% Vit. C + Hyaluronic Acid. Formula breakdown: 12.5% of Vit. C is - 10.5% L-Ascorbic Acid (known as Pure Vit.C) and 2% of Renewable Ascorbyl Glucoside (is a Vit. C derivative). My experience: I am really impressed by this Vit. C product. I love it’s smooth texture (skin feels soft). When you apply it, you’ll feel a warmth, but it didn’t cause any sensitivity or distress (remember that I have rosacea). I didn’t have any problems with breakouts, and it is fast absorbed. Do you have a favorite ... MoreUsing a Vitamin C serum + sunscren on your daily skincare routine is a great way to protect your skin from damaging free radicals caused by UV exposure. Vitamin C is a powerful antioxidant. Recently I bought The Powerful-Strength Line-Reducing Concentrate from @kiehls. It has 12.5% Vit. C + Hyaluronic Acid. Formula breakdown: 12.5% of Vit. C is - 10.5% L-Ascorbic Acid (known as Pure Vit.C) and 2% of Renewable Ascorbyl Glucoside (is a Vit. C derivative). My experience: I am really impressed by this Vit. C product. I love it’s smooth texture (skin feels soft). When you apply it, you’ll feel a warmth, but it didn’t cause any sensitivity or distress (remember that I have rosacea). I didn’t have any problems with breakouts, and it is fast absorbed. Do you have a favorite Vit. C serum?

At $100 for the 75 ml this is by no means cheap but if your willing to invest in a great Vitamin C serum, this is one of the best. Also, you only need two small pumps and this serum spreads super easy depending on how you have prepped your skin before you apply your serums, so the bottle will last me over a month. It comes in a heavy glass bottle with an airtight pump which I love because it keeps the product fresh and that's very important. Leaves my skin glowing, even and supple. Fine lines around my eyes are fading and some discoloration on my forehead from the sun is most definitely clearing up because of this serum and along with my night time skin care regimen with added retinol. This serum is worth every penny if your on the fence, and the product does ... MoreAt $100 for the 75 ml this is by no means cheap but if your willing to invest in a great Vitamin C serum, this is one of the best. Also, you only need two small pumps and this serum spreads super easy depending on how you have prepped your skin before you apply your serums, so the bottle will last me over a month. It comes in a heavy glass bottle with an airtight pump which I love because it keeps the product fresh and that's very important. Leaves my skin glowing, even and supple. Fine lines around my eyes are fading and some discoloration on my forehead from the sun is most definitely clearing up because of this serum and along with my night time skin care regimen with added retinol. This serum is worth every penny if your on the fence, and the product does deliver results.

Biggest regret purchase!

So I am someone who takes my skin care/routine very religiously and to put it briefly, I do not sleep with make up on I moisturize every night and before I came onto this product I was on the Obagi system which gave me fantastic results (see first pic) I decided to opt for a more “natural” serum for maintenance to keep my under eye wrinkles away as one year was enough and wanted to give my skin a break. This product has not only reversed what the obagi system accomplished but I have more lives than EVER. no matter how much I moisturized with this and RELIGIOUSLY APPLOED sunblock it kept getting worse. I chalked it up to “it gets worse before it gets better” as it did with the retinol/exfoliation routine I had and started seeing results within a week and half! This ... MoreSo I am someone who takes my skin care/routine very religiously and to put it briefly, I do not sleep with make up on I moisturize every night and before I came onto this product I was on the Obagi system which gave me fantastic results (see first pic) I decided to opt for a more “natural” serum for maintenance to keep my under eye wrinkles away as one year was enough and wanted to give my skin a break. This product has not only reversed what the obagi system accomplished but I have more lives than EVER. no matter how much I moisturized with this and RELIGIOUSLY APPLOED sunblock it kept getting worse. I chalked it up to “it gets worse before it gets better” as it did with the retinol/exfoliation routine I had and started seeing results within a week and half! This awful serum has brought out more wrinkles than I’ve ever had. I will not longer be using products from this brand again. My sisters confirmed I’m not crazy when they asked why I had so many wrinkles around my eyes. I’m 35 who now looks 45 :(Going back to my old routine and starting all over.Thanks Kiehls!

Great serum for uneven n wrinkled skin

What a lovely serum! I have been using this serum on n off for the last 4 years now and I have to admit that's this one is the best vitamin c serum in the market.It has worked v well for my pigmented skin n reduced my uneven skin tone! Love the smell n v easy to apply. It's has a bit thick texture so make sure u apply evenly onto your skin before applying your moisturiser or SPF.12.5 is a good strength to achieve great results but apply every single day to see the results! A must have product!!

I don't write reviews often. This serum is amazing

I wasn't expecting to be so excited about this product. I continue to be thrilled. I have had a solid twice-daily face regimen for ages (read decades) which has included a serum. Cleanser. Toner. Serum. Moisturizer. I bought this serum to get a bump up in Vitamin C and because I like trying new things and I love Kiehl's. Ok. 2 pumps of this serum after toner is enough for my full face and neck but this serum is addictive so I usually add another little half pump. It is absorbed immediately into my skin and leaves my face feeling silky, hydrated, and moisturized. It is amazing. Don't forget to add your moisturizer because your skin will look and feel like you already have. Oh and that's the other thing, this is not a barrier, so when you apply your face oil or ... MoreI wasn't expecting to be so excited about this product. I continue to be thrilled. I have had a solid twice-daily face regimen for ages (read decades) which has included a serum. Cleanser. Toner. Serum. Moisturizer. I bought this serum to get a bump up in Vitamin C and because I like trying new things and I love Kiehl's. Ok. 2 pumps of this serum after toner is enough for my full face and neck but this serum is addictive so I usually add another little half pump. It is absorbed immediately into my skin and leaves my face feeling silky, hydrated, and moisturized. It is amazing. Don't forget to add your moisturizer because your skin will look and feel like you already have. Oh and that's the other thing, this is not a barrier, so when you apply your face oil or moisturizer they will absorb into your skin just as you would expect.

I feel it definitely works!

I've had good skin conditions in general since I was young but blackheads of my nose has always been bothering.On top of that, open pores on my cheeks are getting more noticeable lately after I became 34. I wanted to try this product and see if it improves these skin issues.It's been just 2 weeks since I started using it but I can already see the deference. My face got brighter, pores on my cheeks are getting smaller, and blackheads on my nose are less noticeable. I still need to continue using it to see the improvement more.Sadly, the pump parts got broken yesterday and I went to a Kiehls store today to see if I can buy a replacement for the pump or something because it's been just 2 weeks since I opened it and you are supposed to close the bottle tightly as ... MoreI've had good skin conditions in general since I was young but blackheads of my nose has always been bothering.On top of that, open pores on my cheeks are getting more noticeable lately after I became 34. I wanted to try this product and see if it improves these skin issues.It's been just 2 weeks since I started using it but I can already see the deference. My face got brighter, pores on my cheeks are getting smaller, and blackheads on my nose are less noticeable. I still need to continue using it to see the improvement more.Sadly, the pump parts got broken yesterday and I went to a Kiehls store today to see if I can buy a replacement for the pump or something because it's been just 2 weeks since I opened it and you are supposed to close the bottle tightly as soon as you finish using it.The staff was very helpful and exchanged it with a new one. What a great customer service! I really like all Kiehls products I've purchased before and am very happy with the company's policy too!

New formula and not sure it’s as effective

I’ve used this product continually for about 3-4 years. The previous bottles always had a yellowish tint and gave a little tingle when applied (especially around my upper & lower lip). The new serum is white and has no sensation when applied. (Directions no long say that a mild tingling sensation may occur). Appears that the formula has changed and feels less effective to me. Of course my return window at Sephora is closed. Not sure I’d buy this Vitamin C product next time I need a refill.

These products are the best!

There is a better products or company on the face of this earth in my opinion. I’m a 53 year old male and have been using the Kiehl’s product line for about 5 years. I can say with reservation that there isn’t anything better in the market place! I have notice a drastic improvement to my skin since I began using them. Reduction of lines and bags around my eyes. My skin looks very healthy and bright, I frequently get compliments from my lady friends how good my skin looks…not to mention, the ladies love it when they learn that I take care of myself and the product line that I use. Of course my stuff always seems to disappear! Lol

WoW!!!- for the better

This stuff is pretty intense! When I say intense, it is not in a bad way. I purchased it to wear for day time. Now I did wear makeup over it, but by midshift, I went to the restroom and after looking in the mirror, I noticed it had actually started "purging" my skin! I wasn't sure if it was from my mask, so I did some research and found that Vit C often times causes that upon initial use. I was shocked. But pleasantly. It appeared to bring blackheads to the surface, that I didn't even know I had. And that was after one use!I now know that its probably better to use at night or on days where I'm home and not applying makeup. I will say that if your skin is sensitive, this might not be for you as it causes a slight tingle right after application. I actually liked it, ... MoreThis stuff is pretty intense! When I say intense, it is not in a bad way. I purchased it to wear for day time. Now I did wear makeup over it, but by midshift, I went to the restroom and after looking in the mirror, I noticed it had actually started "purging" my skin! I wasn't sure if it was from my mask, so I did some research and found that Vit C often times causes that upon initial use. I was shocked. But pleasantly. It appeared to bring blackheads to the surface, that I didn't even know I had. And that was after one use!I now know that its probably better to use at night or on days where I'm home and not applying makeup. I will say that if your skin is sensitive, this might not be for you as it causes a slight tingle right after application. I actually liked it, I just didn't know how well it would work! Will I purchase this again? Absolutely, but it might be a while as I can't see myself applying it daily. Also, with the skin purging, don't be surprised if it causes some blemishes to surface. That's part of the purge! Overall? Great stuff here!