AESTURA Theracne 365 Active Serum 30ml
AESTURA's Theracne 365 Active Serum is a 30ml treatment serum from the brand's blemish-focused line, made for skin dealing with breakouts and the marks they leave behind.
No reviews yet- Ships from our California warehouse
- Duties prepaid
- Suited to
- Acne-prone or breakout-prone skin
- Helps with
- Active breakoutsMarks left behind by past breakouts
In stock. Ships from our California warehouse, dispatched within 2 business days
You’re $100.00 away from free US shipping.
- Duties prepaid
- 30-day returns
- Free US shipping on orders of $100 or more
- Dispatched within 2 business days
Key benefits
- Niacinamide sits at position #5 of 32 on Theracne 365 Active Serum's own manufacturer ingredient list.
- Salicylic Acid is also named on that same list, further down the formula.
- Theracne 365 Active Serum is a serum from AESTURA, taking the serum's usual place in a layered Korean routine.
- AESTURA ships Theracne 365 Active Serum here as the Korean-market formula, the same version sold on shelves in Korea, not a US-shelf reformulation.
- Sold with intact Korean-market barcode and batch coding rather than a US-retail relabel.
Key actives
NiacinamideIngredient #5 of 32 on the manufacturer's own ingredient list
Niacinamide is a form of vitamin B3 used across Korean skincare for its role in a balanced, even-looking complexion. Its position on the list reflects its share of the formula relative to the other named ingredients, not a stated percentage.
Salicylic AcidIngredient #14 of 32 on the manufacturer's own ingredient list
Salicylic Acid is a BHA that works inside the pore lining, common in Korean toners for oily and blemish-prone skin. Its position on the list reflects its share of the formula relative to the other named ingredients, not a stated percentage.
Lactic AcidIngredient #18 of 32 on the manufacturer's own ingredient list
Lactic Acid is a gentler AHA that exfoliates while also drawing in moisture. Its position on the list reflects its share of the formula relative to the other named ingredients, not a stated percentage.
Zinc PCAIngredient #26 of 32 on the manufacturer's own ingredient list
Zinc PCA is a mattifying, oil-balancing mineral compound used in formulas for combination and oily skin. Its position on the list reflects its share of the formula relative to the other named ingredients, not a stated percentage.
Glycolic AcidIngredient #27 of 32 on the manufacturer's own ingredient list
Glycolic Acid is an AHA used for surface exfoliation and texture. Its position on the list reflects its share of the formula relative to the other named ingredients, not a stated percentage.
Can I use this every day?
It is positioned as a treatment serum for active breakouts; many people start with daily use and adjust based on how their skin responds.
Why does this serum pair salicylic acid with niacinamide rather than using it alone?
Niacinamide sits alongside salicylic acid and dipotassium glycyrrhizate, splitting the work between exfoliation and calming so the serum supports active breakouts without leaving skin as reactive as a salicylic acid formula run on its own often does.
- Ships from
- California
Duties are prepaid. Nothing is owed at delivery. Returns are accepted for 30 days, by mail.
Orders ship from our California warehouse, dispatched within 2 business days, and arrive in 3 to 5 days. Shipping is free on orders of $100 or more.
We split shipments free, so one out-of-stock item never holds up the rest of your order.
Where this unit came from
- 1Seoul
Bought as Korean-market stock - 2Customs
Duty paid by us before it enters the US - 3California
Ships domestically, no international leg
We stock the version of a formula that is sold in Korea, not the release a brand prepares for another market under the same name.
Every unit keeps its original barcode and batch code intact, so the unit in your hands can be checked against the brand’s own records.
Import duties are paid by us before the parcel reaches you, so nothing is owed at the door, and returns run for 30 days.
Every claim on this page traces to the unit in the box, the barcode, the batch code and the price you can read for yourself.
Payment and security
We accept
How it works
Theracne 365 is AESTURA's dedicated acne-prone line, and this serum is its concentrated treatment step, meant to sit between toner and moisturizer on days skin is actively breaking out.
How to use
- After toner, before moisturizer.
- Apply a few drops over the face, or spot-treat active areas.
- Follow with a lightweight, non-comedogenic moisturizer.
Reviews
No reviews yet. Tell us how much you love the product!
Write Reviews (opens in a new tab)We’re on gram!
Creators trying on authentic Korean skincare routines and products from us.
Rating a shelf of Dr. Althea products one by one.
Jasmine Loo · YouTube
Two hydrating serums side by side, IUNIK and Dr. Althea.
Kristin · YouTube
A walk through the Dr. Althea serum lineup and who each one suits.
auraofmahmuda · YouTube
A blunt first take on the Dr. Althea range.
Lexi Chang · YouTube
A first look at the viral 345 Relief Cream before buying.
Shelley Nayak · YouTube
A first try of the Dr. Althea serum on camera.
Hannah Ziad · YouTube
Korean-market original
The treatment serum in AESTURA's blemish-focused Theracne 365 line.
Verify your unit when it arrives
Verify your unit when it arrives
Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.
Match the batch code on the box against the code printed on the bottle or tube itself; the two are stamped separately and should agree.
On the unit itself
- The Korean-market barcode, unaltered from the retail package.
- The manufacturer’s batch code, exactly as the maker printed it.
정품Genuine article, Korean-market stock
What professionals say
What professionals say
What skin-care professionals say about the key actives in this formula, quoted from the medical sources linked beside each.
BHAs like salicylic acid get really deep into the pores, whereas the water-soluble ones don't go as deep.
Samantha Stein, PA-CDermatology physician assistant, Cleveland Clinic Niacinamide helps reduce the appearance of pores in a few ways. By strengthening the skin barrier and improving elasticity, pores appear less noticeable and more even.
Ashlyn YankeAesthetician, Cleveland Clinic
Ask an AI assistant about this product
Ask an AI assistant about this product
Opens ChatGPT, Perplexity or Claude in a new tab with the question prefilled. Claude asks you to sign in first.