MEDITHERAPY

MEDITHERAPY Retinal Skin Booster Serum Retinaldehyde Niacinamide Anti-Aging Serum - K-Beauty Facial Serum for Fine Lines Firming Radiance

$19.99

430+ bought in the past month

About this item

  • ✨ RETINALDEHYDE COMPLEX ✨ This advanced Korean skincare serum delivers potent anti-aging benefits to help reduce the appearance of fine lines and support skin renewal for a smoother, more youthful-looking complexion with visible results.
  • 🌟 SKIN FIRMING & RADIANCE 🌟 Advanced formula helps enhance skin elasticity and promotes a glowing, luminous complexion by supporting natural radiance and refined skin texture for a more lifted appearance.
  • 💧 NIACINAMIDE & HYDRATION 💧 Clinically-formulated with niacinamide to help strengthen skin barrier, minimize pore appearance, and provide deep hydration while supporting skin's natural resilience and radiant glow.
  • ✅ VISIBLE RESULTS FOR MATURE & AGING SKIN ✅ Clinically-formulated serum targets the appearance of tired, dull skin and helps support a more vibrant, youthful glow with consistent daily use as part of your skincare routine.
  • 🌿 GENTLE YET POWERFUL 🌿 Advanced retinaldehyde serum is designed for all skin types, including sensitive skin, delivering transformative anti-aging benefits without harsh irritation, promoting smooth, refined complexion.
  • 🧴 VALUE SIZE FOR FACE & BODY 🧴 Generous 5.07 fl oz (150ml) jumbo size provides potent retinal care for the face, neck, and body. Experience head-to-toe anti-aging benefits and consistent daily use with this ultimate value-sized solution.
$19.99

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Product details
Skin TypeAll
Use forFace
BrandMEDITHERAPY
Item FormDrop
Active IngredientsAdenosine, Niacinamide, Retinaldehyde
Technical specifications
product_dimensions14.17 x 9.06 x 8.46 inches; 5.29 ounces
manufacturerKOLMAR KOREA CO. LTD
best_sellers_rank#2,553 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #84 in Facial Serums

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Customer reviews

4.53,941 ratings
  1. 575%
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Customers say

Customers find this skin serum effective, describing it as a high-quality addition to their skincare routine that works well with other products.

★★★★★

Gentle Retinal That Works

AriaFebruary 10, 2026✓ Verified purchase

This is the perfect retinal serum for beginners. The MEDITHERAPY Retinal Skin Booster Serum is lightweight, absorbs quickly, and causes zero irritation for my sensitive skin with no redness, peeling, or dryness. After a few weeks, my skin looks brighter, smoother, and fine lines appear softer while my skin barrier still feels healthy and hydrated. It delivers real anti-aging benefits without the harsh side effects most retinal products have. If you’re new to retinal or want effective results without irritation, this is a great choice. Definitely a staple in my nighttime routine Read more

★★★★★

Very gentle retinoid, great for beginners

K.C.February 20, 2026✓ Verified purchase

My skin felt great with this product, felt super smooth and bouncy without any irritation. Lightweight formula, which meant it absorbed quickly (making it easier to follow up up with moisturizers) and it applied evenly (which can reduce the risk of irritation.) Also very affordable for a retinoid. Read more

★★★★★

The Real Deal

DavidNovember 4, 2025✓ Verified purchase

As a guy in my late thirties, I have invested a lot more into skincare over the last year and I have tried myriad products, typically mid-range/affordable to very high-end and this retinal skin booster is one of my favorites. I’m new to retinoids, and I am grateful to have found this early on in my journey. Despite the strength of retinal vs. retinol, I prefer this serum to the retinol I was using before. I think it is kinder to my somewhat sensitive skin and it really does give my skins boost! I will say that I have not yet used this more than two nights in a row, but I plan to do so now that we are entering the winter months. But I will say that living in the high desert that I have not experienced any issues or increased sensitivity, but I am mindful of sun exposure and daily spf 50. But this serum works! My skin looks refreshed s d brighter after one night of use. My skin looks and feels great and after washing my face the next morning, my skin is neither dry nor greasy, but well balanced. It also does well with layering of other products without becoming sticky or heavy. I see this on sale often, but even if it’s not it is still reasonably priced for the results it delivers. Dk yourself (and your skin) a favor and give this one a shot. I recommend it to a lot of friends and I would highly suggest that you try it, too, if you’re looking for an accessible and wallet friendly way to level up your skincare routine. Read more

★★★★☆

Good Retinal Serum for Mature Skin

Juanita CamposMarch 3, 2026✓ Verified purchase

m in my 40s and wanted something to help with uneven tone and fine lines without being too harsh. This serum feels lightweight and absorbs quickly. I started using it a few nights a week and slowly increased. After consistent use, my skin looks smoother and more even. It’s not an overnight miracle, but it works well if you’re patient and use sunscreen daily Read more

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★★★★★

Best serum I have tried

JoNovember 27, 2025✓ Verified purchase

I'm a skeptic. I've wasted tons of money on products that promised and delivered no results. I seen this product all over tic Tok and Facebook, read the reviews and decided to try it. I saw no real results overnight obviously. But with a week of constant use, I was slowly starting to notice a difference. It's has now been 2 1/2 weeks and I will say, I definitely notice a difference. I have old acne scars, keratosis pillarsis and I sometimes still break out. I am 40 now, so I'm also battling fine lines I want to prevent from getting worse. I have large pores and oily/dry skin. This serum does make you feel a little sticky at first, but a little goes a long way and it comes in a bigger bottle than most products for a decent price. I put this all over my body from my face to my feet. It has balanced out my skin, it is more clearer, smoother and I have even noticed the scars are not as visible as they used to be. It does not irritate my skin, in fact it's even made the keratosis pilaris look better on my arms.. It has made my feet softer too. I will be purchasing another bottle for sure. Read more

★★★★★

Smooth and plump! My face! My face!

BouncerMarch 3, 2026✓ Verified purchase

Ordered another one! This is a really great product! Works well to moistueurize, smooth and plump. Only been a week, but I can see and feel a marked difference. Read more

★★★★★

IT WORKS

KatFebruary 11, 2026✓ Verified purchase

Well well well...would you look at this stuff...it actually WORKS!!!!! How refreshing! I have bought more products than I care to admit to....for sun spots...none ever worked. THIS STUFF...after my 2nd application (bare skin then cover serum with a moisturizer) and my legs and arms are all but spot free!! SHOCKING!! I was so thrilled I came back for 2 more bottles. Those ugly sun spots have been banished. Back of my hands look amazing too. Imagine if I used it daily...lol! It has zero smell, no sting, did not cause redness or drying. DO be sure to give it a couple minutes to set..and layer a lotion or moisturizer over it. I use on face then ams and legs. It IS a tiny bit sticky but dries quickly! I put it on the backs of my hands at bedtime, again layer a hand lotion OVER it....but what a gold mine! I've had the best luck ever with this product!! Read more

★★★★☆

Good product

MARY THOMPSONFebruary 12, 2026✓ Verified purchase

I have only used this product for a few weeks, and I love how it makes my skin feel. Not enough time to see a different but my face feels soft and silky Read more

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