[CosDeBaha] LS Lactic Acid 12.5 Serum 30ml
The CosDeBaha LS Lactic Acid 12.5 Serum delivers controlled chemical exfoliation in a precisely measured 30ml bottle engineered for consistent overnight renewal without triggering reactive redness. Formulated at 12.5 percent, this water-soluble alpha hydroxy acid lifts accumulated surface debris, accelerates clearance through stubborn post-acne pigmentation, and reinforces the moisture matrix to soften shallow creases and restore a uniform complexion.
Unlike high-concentration peels that compromise the lipid barrier, this solution relies on a stabilized formulation buffer paired with Aloe Barbadensis Leaf Extract and Camellia Sinensis Leaf Extract to neutralize sudden pH shifts. The lactic acid component sources its active molecules from fermented plant substrates rather than dairy, meeting contemporary vegan skincare parameters. Each unit meets N.O.I.P 75% regulatory marking and explicitly excludes seven recognized sensitizing agents, ensuring a cleaner application profile for reactive complexions.
To integrate this into an active regimen, dispense a moderate quantity onto dry skin following cleansing, press until the formula disappears without leaving a film, and follow with a moisturizer. Rotate application days separately from retinoid nights; alternating these powerful catalysts maintains steady cellular turnover while preventing cumulative barrier fatigue. Pair with broad-spectrum sun protection during daytime hours to safeguard newly exposed tissue.
Couldn't load pickup availability
Description
Description
The CosDeBaha LS Lactic Acid 12.5 Serum delivers controlled chemical exfoliation in a precisely measured 30ml bottle engineered for consistent overnight renewal without triggering reactive redness. Formulated at 12.5 percent, this water-soluble alpha hydroxy acid lifts accumulated surface debris, accelerates clearance through stubborn post-acne pigmentation, and reinforces the moisture matrix to soften shallow creases and restore a uniform complexion.
Unlike high-concentration peels that compromise the lipid barrier, this solution relies on a stabilized formulation buffer paired with Aloe Barbadensis Leaf Extract and Camellia Sinensis Leaf Extract to neutralize sudden pH shifts. The lactic acid component sources its active molecules from fermented plant substrates rather than dairy, meeting contemporary vegan skincare parameters. Each unit meets N.O.I.P 75% regulatory marking and explicitly excludes seven recognized sensitizing agents, ensuring a cleaner application profile for reactive complexions.
To integrate this into an active regimen, dispense a moderate quantity onto dry skin following cleansing, press until the formula disappears without leaving a film, and follow with a moisturizer. Rotate application days separately from retinoid nights; alternating these powerful catalysts maintains steady cellular turnover while preventing cumulative barrier fatigue. Pair with broad-spectrum sun protection during daytime hours to safeguard newly exposed tissue.
How to use
How to use
The CosDeBaha LS Lactic Acid 12.5 Serum delivers controlled chemical exfoliation in a precisely measured 30ml bottle engineered for consistent overnight renewal without triggering reactive redness. Formulated at 12.5 percent, this water-soluble alpha hydroxy acid lifts accumulated surface debris, accelerates clearance through stubborn post-acne pigmentation, and reinforces the moisture matrix to soften shallow creases and restore a uniform complexion.
Unlike high-concentration peels that compromise the lipid barrier, this solution relies on a stabilized formulation buffer paired with Aloe Barbadensis Leaf Extract and Camellia Sinensis Leaf Extract to neutralize sudden pH shifts. The lactic acid component sources its active molecules from fermented plant substrates rather than dairy, meeting contemporary vegan skincare parameters. Each unit meets N.O.I.P 75% regulatory marking and explicitly excludes seven recognized sensitizing agents, ensuring a cleaner application profile for reactive complexions.
To integrate this into an active regimen, dispense a moderate quantity onto dry skin following cleansing, press until the formula disappears without leaving a film, and follow with a moisturizer. Rotate application days separately from retinoid nights; alternating these powerful catalysts maintains steady cellular turnover while preventing cumulative barrier fatigue. Pair with broad-spectrum sun protection during daytime hours to safeguard newly exposed tissue.
Ingredients
Ingredients
The CosDeBaha LS Lactic Acid 12.5 Serum delivers controlled chemical exfoliation in a precisely measured 30ml bottle engineered for consistent overnight renewal without triggering reactive redness. Formulated at 12.5 percent, this water-soluble alpha hydroxy acid lifts accumulated surface debris, accelerates clearance through stubborn post-acne pigmentation, and reinforces the moisture matrix to soften shallow creases and restore a uniform complexion.
Unlike high-concentration peels that compromise the lipid barrier, this solution relies on a stabilized formulation buffer paired with Aloe Barbadensis Leaf Extract and Camellia Sinensis Leaf Extract to neutralize sudden pH shifts. The lactic acid component sources its active molecules from fermented plant substrates rather than dairy, meeting contemporary vegan skincare parameters. Each unit meets N.O.I.P 75% regulatory marking and explicitly excludes seven recognized sensitizing agents, ensuring a cleaner application profile for reactive complexions.
To integrate this into an active regimen, dispense a moderate quantity onto dry skin following cleansing, press until the formula disappears without leaving a film, and follow with a moisturizer. Rotate application days separately from retinoid nights; alternating these powerful catalysts maintains steady cellular turnover while preventing cumulative barrier fatigue. Pair with broad-spectrum sun protection during daytime hours to safeguard newly exposed tissue.
Formulation Disclaimer
Formulation Disclaimer
Korean beauty products are reformulated frequently, and packaging or ingredients may differ slightly from what's shown. If you'd like to confirm the current formulation before purchasing, email us at info@kbeauti.ca.
Share this product
What Our Customers Are Saying
H. Murray
Wonderfully soothing lip balm.
The sleeping mask has a very slight and pleasant hint of strawberries, It goes on smoothly. It coats the lips with a clear balm. The lIt comes with a cute applicator. Personally I like it and would order it again.
![[Laneige] Lip Sleeping Mask EX 20g - Apple Lime](http://kbeauti.ca/cdn/shop/files/1663249271137_f459b5aeb62446e38ec4fb8d598ec9c6_c5dc0e75-f59b-4518-b7b6-8e20b4ffc183.jpg?v=1778306801&width=360)
Linda Wei
Perfect Product Quality
And Service
It is my second time to purchase product and I am satisfied with the quality for both product and service from the seller.
![[It'sSKIN] Power 10 Formula Q10 Effector 30ml](http://kbeauti.ca/cdn/shop/files/1648087825721_9ef9a862268f475490ca425703c2aa27.jpg?v=1778306185&width=360)
Carla
Love This Serum!
I’ve been using this serum for a month and love it. Nice scent and I’m seeing great results.
![[Mamonde] AGE CONTROL SKIN LIFT SOFTENER 200ml](http://kbeauti.ca/cdn/shop/files/1680584394494_32fe26d53bf54d8c8cdeebbff11026a4.jpg?v=1778307272&width=360)
Julia C
Best Face Masks
This mask is so smooth and hydrating, without being too heavy. I have been using it nightly since I purchased and I love it. The best part is that you don't have to wash it off, it absorbs perfectly.
![[Laneige] Water Bank Blue Hyaluronic Cleansing Foam 150ml](http://kbeauti.ca/cdn/shop/files/1651482843630_8a5c666069e04ff99435ad6bc05fa189_126937cc-c9cf-40ad-affd-ca9f2ee1e139.png?v=1778306790&width=360)
Joan
Awesome product!
I really loved this serum! I can see changes of my face just less than a week using this serum. I'm proud to say that it suits my skin need and very effective. My skin looks smoother and healthier! Thanks a lot!
![[It'sSKIN] Power 10 Formula LI Effector 30ml](http://kbeauti.ca/cdn/shop/files/1648086274364_b4680ec74484421f9af2fca02364877b.jpg?v=1778306211&width=360)
Have Questions? We're here to help!
We craft safe, effective products designed to make you feel great. Got a question about our products?
See if you can find the answer here or feel free to Contact us.
Shipping Policy
Shipping Policy
Do you offer free shipping?
We most certainly do! Please see the "FREE Shipping" tab below for a breakdown by Country.
When will my KBeauti order ship?
We process and ship out all orders Monday through Friday, not including holidays.
Orders with standard shipping will usually be fulfilled and shipped within 1-2 business days (Monday through Friday, not including holidays).
Please note that due to global supply chain delays, some orders may take longer than expected to reach you.
Please reach out to us at info@kbeauti.ca for further assistance.
Once your order has shipped, you will receive a shipping confirmation email with your tracking information enclosed.
Please note that it may take up to 24-48 hours for your tracking information to update.
Where will my KBeauti order ship from and how long will it take for my order to arrive?
All KBeauti orders are shipped directly from Soeul, Korea.
Orders with standard shipping usually take 10-15 business days from the day the order is placed to arrive at it's final destination.
Orders with express shipping usually take 4-7 business days from the day the order is placed.
Do you charge domestic sales tax?
Domestic sales tax will be applied to orders based on order destination and in compliance with federal, state and local laws.
Will I have to pay customs duties or import taxes?
Possibly. Orders shipped from Korea may be subject to customs duties, import taxes, VAT/GST, or brokerage fees depending on the country of delivery.
These charges are determined by your local customs authority and are not included in our product prices or shipping fees.
Who is responsible for paying these charges?
The customer is responsible for paying any duties, taxes, or import fees required by the destination country.
We do not collect or control these charges.
Why are there additional fees?
Because your order is being imported from Korea. Many countries apply duties or taxes to international shipments once they arrive in the destination country.
What about U.S. orders?
The United States currently has a de minimis threshold (generally USD $800), meaning shipments under that value may enter duty-free. However:
This threshold is set by U.S. customs and may change.
Certain products may still be assessed.
Customs has final discretion.
We are not responsible for duties assessed by U.S. customs authorities.
What happens if I refuse to pay customs charges?
If duties or taxes are not paid, the shipment may be returned or abandoned. Any return shipping, storage, or carrier fees may be deducted from your refund.
All KBeauti policies are subject to change without advanced notice.
I reached out via email but I haven't received a response in over 2 business days! What now?
We're sorry to hear this! Please make sure your inquiry was sent to info@kbeauti.ca.
We do our best to get back to everyone as soon as possible -- this usually means within 1-2 business days (Monday to Friday, excluding holidays).
Sometimes our replies can end up in Spam, so please be sure to check there and add us as a contact!
FREE Shipping
FREE Shipping
Zone 1 - Free standard shipping for all orders $50+ USD
Zone 2 - Free standard shipping for all orders $60+ USD
Worldwide (Including Zone 1 + 2) - Free express shipping for all orders $120+ USD
(Zone 1 - Australia, Brazil, Canada, China, Germany, Spain, France, England (GB), Hong Kong, Japan, Malaysia, Philippines, Russia, Singapore, Thailand, Taiwan, Vietnam)
(Zone 2- United States except for Hawaii, Guam, Saipan)
Note for some "Worldwide" countries the minimum for free express shipping may be more than $120 USD. Please enter your address on the checkout page to confirm.
About Us
About Us
Our team is passionate about accessibility and wellness.
Based in Canada and established in 2021, our goal is to bring the research-backed work of the Korean Beauty industry to bathroom counters across the globe.
We specialize in Korean skin care and cosmetic products only and hold a deep appreciation for the research and technology our Korean brand partners commit to.
We partner directly with Korean suppliers to send their products across the globe.
We believe that everyone has a glow, and our goal is to help everyone access the best skin care technology the world has to offer, at a reasonable cost.
Sunscreen & SPF Products in Canada
Sunscreen & SPF Products in Canada
Unfortunately due to regulations by Health Canada we are unable to offer any Korean sunscreen or SPF products to Canadian customers.
We are working with Health Canada to obtain Federal approval for these items, but it's a lengthy process.
We apologize for the inconvenience and will let you know as soon as this changes!
Why does my product look different from the photos on your site?
Why does my product look different from the photos on your site?
Korean beauty brands update their formulas and packaging regularly - sometimes several times a year - and these changes often happen faster than we can update every listing. We do our best to keep product pages current, but what you receive may have a newer formulation or updated packaging. The core product and its function remain the same. If you'd like to verify what's currently in stock before ordering, reach out to us at info@kbeauti.ca and we'll confirm for you.
![[CosDeBaha] LS Lactic Acid 12.5 Serum 30ml](http://kbeauti.ca/cdn/shop/files/1787208340255_9df99bdbac9d45b9b0df64a7776e4a52.jpg?v=1788004447&width=180)