Search  for anything...

ROUND LAB Birch Juice Moisturizing UV LOCK SPF 45 | NBC No1 SPF, Glow Sunscreen for Daily Skincare, Non-toxic, UV Protection, Lightweight, Oil-Free, Organic, Reef-Safe Korean Sunscreen (1.69 Fl Oz)

  • Based on 653 reviews
Condition: New
Checking for the best price...
$17.88 Why this price?
Save $10.12 was $28.00

Buy Now, Pay Later


As low as $4 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon

Arrives Friday, Aug 29
Order within 5 hours and 49 minutes
Available payment plans shown during checkout

Features

  • [NBC SELECTS #1 FACIAL SUNSCREEN] Ranked No.1 out of 100+ sunscreens tested by NBC Select editors. Praised for its hydrating yet lightweight formula, zero white cast, and skin-soothing finish perfect for daily use, even under makeup.
  • [OTC REGISTERED, TRUSTED SUN PROTECTION] This OTC registered UV Lock sunscreen is developed to retain the soothing, moisturizing benefits of our original Birch Juice Moisturizing Sunscreen while meeting SPF 45 Broad Spectrum regulations in the US (Exclusive to the US)
  • [LIGHTWEIGHT TEXTURE WITH NO WHITE CAST] The non-greasy, lightweight essence texture applies seamlessly, leaving no white cast while providing a smooth, natural finish. Perfectly make-up friendly, it helps create a protective UV barrier without clogging pores or feeling heavy
  • [SAFE FOR ACNE-PRONE, SENSITIVE SKIN] All ROUND LAB products are formulated with natural, non-toxic ingredients, free from 19 harmful substances. This reef-safe sunscreen is gentle on sensitive, acne-prone skin and has completed low-irritation testing and German Dermatest certification. Suitable for all skin types
  • [HOW TO USE] Apply as the final step of your skincare routine after serum and moisturizer, gently patting onto face and neck. The gentle, non-stinging formula is safe even for the delicate eye area and washes off easily with regular cleanser. Its lightweight texture provides all-day comfort with breathable, non-greasy hydration

Scent: Unscented


Product Benefits: Ultra-Violet Protection


Sun Protection Factor: 45 Sun Protection Factor (SPF)


Item Weight: 50 Grams


Number of Items: 1


Package Dimensions ‏ : ‎ 5.83 x 1.46 x 1.34 inches; 1.76 ounces


Manufacturer ‏ : ‎ KOLMAR KOREA


Best Sellers Rank: #2,033 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #29 in Facial Sunscreens #319 in Facial Skin Care Products


#29 in Facial Sunscreens:


#319 in Facial Skin Care Products:


Customer Reviews: 4.1 4.1 out of 5 stars 653 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Aug 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Game changer
Since I started using this sunscreen, I’ve noticed an incredible improvement in my skin. I can’t express how good it is. I used to use American sunscreens, but they always had drawbacks: they left white streaks, felt heavy, and had a sticky texture that would stain my clothes and even my car interior. However, this sunscreen is completely different. It’s lightweight, doesn’t leave any white residue, and is gentle on the skin. It’s true that during the first 5 to 10 minutes, it feels a little sticky while it absorbs, but after that, my skin feels soft and looks flawless. And before anyone complains about the price, keep in mind that this is a high-quality Korean product. The cost reflects everything behind it: the packaging design, the work of dermatologists and researchers, licenses, the production of the cream, manufacturing and distribution costs, staff salaries, operational expenses (water, electricity, etc.), and the processes needed to export it to other countries. Every penny is worth it. ... show more
Reviewed in the United States on December 19, 2024 by AC

  • Perfect face sunscreen
Great sunscreen for face. Lightweight, no white cast, and leaves skin feeling moisturized. I love that it doesn’t smell like sunscreen!
Reviewed in the United States on July 31, 2025 by Gerry Blaksley

  • The best sunscreen for hydration and protection!
I have tried a lot of sunscreens, but this round lab birch juice moisturizing UV lock SPF 45 as quickly become my favorite. The texture is lightweight and applied smoothly without leaving any white cast, which is a huge plus! I love how it provides strong UV protection while keeping my skin hydrated all day long. What really sets the sunscreen apart for me is how it doesn’t feel greasy at all. It’s more like a moisturizing essence, which feels great on my skin even though it’s powerful against the sun. It’s gentle enough for my sensitive, acne prone skin. I’ve been using it daily and have experience no irritation or breakouts it’s reassuring to know that it’s ocean, friendly and reef safe, making it a responsible choice for both my skin and the environment. with all the amazing features and the fact that it’s won awards for three years straight I’m sold. I’ll definitely be rep purchasing and recommending this to others. ... show more
Reviewed in the United States on April 17, 2025 by Sid

  • The Korean one is the best…this is not the Korean one
I love Korean skincare, especially their advanced sunscreen formulations. I’ve tried soooo many— Beauty of Joseon’s, Skin 1004’s, Isntree’s… but this one was by far the best— when I bought it elsewhere. I thought I would try ordering it on here since Roundlab’s Instagram page had a link directly to this store and it was cheaper than the other one. The packaging is different first off— understandably there is more English on this one, but the SPF number is also differing (45+ on this one and 50+ on the Korean one). I confidently went to apply this sunscreen on my face, believing it to be the same as my other, but quickly became confused when it smelled so strong of the body sunscreen applied here in the U.S. and left my face feeling and looking greasy. I re-washed my face fearing that I would break out from this new one. The original Roundlab sunscreen really deserved to win all the awards— it has no smell, no white cast, doesn’t feel sticky or look greasy, and doesn’t make me feel like I’ll break out from it, nor have I ever broken out from it. I’ll be using this new sunscreen as my hand sunscreen instead and will never try to cut a few cents on my dear Roundlab Korean sunscreen again. ... show more
Reviewed in the United States on July 3, 2025 by Nevaeh Hernandez

  • Lightweight and makeup friendly - everyday sunscreen
I’ve been using the Round Lab sunscreen for a few weeks now and it’s honestly perfect for everyday wear. It’s super lightweight and blends in effortlessly with no white cast at all, which is a huge plus, especially for deeper skin tones like mine. It wears beautifully under makeup. It feels smooth on the skin, and actually makes my foundation apply more evenly. It’s almost like a hydrating primer in that way. The only downside for me is that it does make me look a bit oily after a few hours, especially in my T-zone. If you have oily or combo skin, you might want to use a mattifying primer or blotting paper throughout the day. Other than that, it’s a great sunscreen. Gentle, effective, and comfortable for daily use, just wish it had a slightly more matte finish. I would still recommend this, especially for dry to normal skin types! ... show more
Reviewed in the United States on July 24, 2025 by JB

  • light and feels like nothing
feels very light on my skin unlike other sunscreens, it does not feel greasy or thick at all and has no white cast. it does make you skin look shiny or greasy though, but it doesn't feel like it.
Reviewed in the United States on July 28, 2025 by iloveicecream

  • Fantastic daily wear under moisturizer
Love this. It's light, absorbs well, does not feel greasy at all. My skin hates sunscreen, so this is a great find !
Reviewed in the United States on August 3, 2025 by Amazon Customer

  • New formula maybe?
Idk if they changed the formula or something but this is very different from my first bottle. I got it from Korea and it's my fav sunblock. In the pic attached you can see the left bottle is completely squeezed empty. It also looks different maybe because the new one is sold here. The empty tube doesn't break me out and is light weight, has no smell. But the new bottle I received is completely different. The formula smells like strong sunblock, it's thick and heavy, it doesn't have a cast which makes me wonder if they did change the formula. I tried it and its to heavy for my skin sadly. So if you have used this before and buy it again you may not like the change. ... show more
Reviewed in the United States on July 10, 2025 by Charlie Jung Charlie Jung

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...