• [BRIGHTEN SKIN TONES] Packed with a potent 24% pure vitamin C (246,750ppm), this serum is a powerhouse for your skin. Experience rejuvenated, firmer skin and a brighter complexion in just 2 weeks.
  • [REJUVENATING COLLAGEN] Infused with triple collagen, it works wonders on loose skin, enhancing its elasticity and firmness.
  • [TONING EFFECT] Formulated with 0.5% alpha bisabolol, it effectively blurs imperfections, leaving your skin looking flawless.
  • [ECO-FRIENDLY] With its eco-friendly glass packaging and removable label for easy recycling, it aligns with your commitment to sustainability.
  • [HOW TO USE] Simply apply a suitable amount during your skincare routine, gently massaging it onto your skin until absorbed. For ultimate protection during daytime use, don’t forget to apply a sunscreen with SPF 30 or higher after using the serum.

Additional information

Package Dimensions

3.94 x 2.72 x 1.65 inches, 4.94 ounces

Manufacturer

TIRTIR

Country of Origin

Korea, Republic of

8 reviews for TIRTIR PURE VITAMIN C 24% SERUM 30ml

  1. Svilena

    I like it! It feels nice and absorbs well. Since I started using it I also see results, my face looks brighter and refreshed. However, after about an hour of putting it on, my face starts to smell awful, like rotten eggs. It lasts the entire day and I never get used to it. I’m not sure if other people have this experience but it’s not pleasant at all. If the smell doesn’t bother you then it’s really a great product!

  2. Kelsey Dixon

    I don’t even know if this serum works or not because of the smell. I would say about 10-15 minutes after you apply even if you layer a moisturizer over the top you will start to notice a fishy smell. It was so bad that my husband pointed it out when we were in bed one night.

  3. Bita

    I really love this! It lays so nicely on my skin. Gives it a beautiful glow. For those wondering, I have dry skin and this made it look so healthy!

  4. sharon yeary

    I love this serum. It’s making the brown spots on my face lighter and lighter. Also leaves my skin feeling soft and supple. Definitely worth the purchase and will buy again.

  5. AB

    After a few days of use, I noticed my fingers and nails were turning orange, then bright orange, then a dark orange. I luckily was able to find out why on Michelle’s Lab Muffin Beauty Science blog. The type of Vit C in this product is known to degrade quickly. And stain. Now I’m putting it on with gloves. (My face isn’t stained, but I do tend to have more rough skin and peeling around my fingers and nails, so I think most people would likely be ok.) So I am so glad others mentioned the smell. To me, when I got into bed after my routine I kept smelling something like dank, old dusty furniture. Maybe with a hint of mold? Not exactly fish, but not pleasant. I thought maybe I dropped some food somewhere and I couldn’t find it, haha! I am very relieved to know the source. But I do think it is helping. I’m not 100% sure yet. If I manage to keep using it, I’ll update my review.

  6. laurie

    This serum has an oil consistency/feel – but I PROMISE you – it is NOT oily on the skin! This absorbs SO QUICKLY! Definitely a game changer with 24% Pure Vitamin C (246,750ppm) – and 0.5% Alpha Bisabolol being anti-inflammatory and antimicrobial makes this Vit C blend AMAZING for those with PIH too!

  7. Cybergeekchick

    This is my first time using a vitamin C+ serum. I have been switching up my skincare and got turned on to K-Beauty skincare through Miss Darcei and the Tir Tir Mask Fit Red Cushion Foundation. I have been using this for about three weeks, and I am noticing a difference. I have some acne hyper-pigmentation and general pigmentation dark areas that I have noticed are less visible. It is even getting rid of my glasses marks on the bridge of my nose! I’m also noticing that some of my fine lines are less noticeable as well.

    Here’s a few things you should know:

    1.) It is an oil-based serum. I was a bit nervous about that because I have combination/oily skin, but so far I have not experienced any breakouts or clogged pores. I use a dropper sized amount on my face and my neck, and smooth it into my skin.

    2.) The directions I have found have said to use this after toner. I use the Tir Tir Milk Toner Light. I clean my face with the powdered Tir Tir enzyme face wash, dry my face, apply the toner, and let that sink in before I apply this serum.

    3.) After I apply this serum, I let it soak in before I use the Tir Tir SOS serum as my moisturizer. I let that sink in, and then I apply sunscreen. I have not tried this under makeup yet, so I don’t know how well they play together as an oily skin girl.

    I have not tried this with any other moisturizer, so I’m not sure how well this will play with other non-Tir Tir products.

    ADDITIONAL POINTS:

    a.) Do a patch test before you commit to applying this all over your face. I applied some inside the crook of my elbow and a little on my jawbone/neck area and waited 24 hours to see if I had a reaction. When there was none, I started using it.

    b.) This serum is strong, so use it every other day or twice a week until your skin gets used to it. I’m now able to use this five days a week, and I’m working up to seven.

    c.) VERY IMPORTANT! THIS HAS TO BE REFRIGERATED! I think the reason why people have had problems with it smelling and turning brown is because they’re not refrigerating this serum after use. Don’t store this in a hot place like a bathroom where you take your showers and hot baths. Use it and refrigerate it ASAP – this has to be kept in a cool, dry, and dark place. I have not had any issues of it smelling bad out of the bottle or on my face.

    d.) ALSO VERY IMPORTANT! Once you break the seal on this bottle, be sure to use this up in TWO MONTHS or it will turn on you. Oxidation turns this serum brown, so keep it sealed and refrigerated after use.

    So far I am very pleased with this serum and have made it a part of my daily beauty routine.

  8. Jedi

    Only tried this once but I just received it.. it’s thick, greasy and has an off smell.. not sure if it’s supposed to be this way.

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