Aestura
Aestura Theracne 365 Hydro Active Toner
Ingredient analysis and how the ad lines read
Read on 2026-09-06
What is this product?
Aestura's Theracne 365 Hydro Active Toner is a strong pick for oily, congested skin that reacts to anything rich: there is no oil, no fatty acid and no fatty alcohol anywhere in its 16 ingredients, just niacinamide fourth, salicylic acid and zinc chloride in a water base with no fragrance or dye. Ignore the headline results, though: pore volume down 44.0 percent, sebum down 51.8 percent and dead skin cells down 57.3 percent were all measured after a single use on 31 people, which captures what a wet exfoliating liquid does in the moment rather than what it does over weeks. Skip it if you are pregnant, since it carries salicylic acid, or if your skin is dry, because nothing on this label holds water in.
What makes it different?
What actually sets it apart is what is missing: a 16-ingredient list with no lipid at all is rare even among oil-free toners, and it is the reason this suits fungal-acne-prone skin that most acne toners do not. The claim Aestura genuinely evidenced is the modest one, acne-prone suitability tested over 4 weeks on 20 adults, alongside a 48-hour patch test and a 54-adult repeat-application allergy test. It is registered as a whitening functional cosmetic in Korea and never advertised as one.
What is in it?
The full ingredient list as the brand publishes it, in the printed order. Each name links to what we know about that ingredient.
Key ingredientWorth a closer look
- WATER / AQUA / EAU
- BUTYLENE GLYCOL
- GLYCERIN
- NIACINAMIDE
- ISOPENTYLDIOL
- BETAINE
- PANTHENOL
- ALLANTOIN
- DIPOTASSIUM GLYCYRRHIZATE
- XANTHAN GUM
- DISODIUM EDTA
- ETHYLHEXYLGLYCERIN
- CELLULOSE GUM
- SALICYLIC ACID
- ZINC CHLORIDE
- TOCOPHEROL
Ingredients with no mark are ones we found nothing notable about, and when marks overlap on one ingredient we show the caution first.
Did the ad claims hold up?
We checked 12 lines this product advertises against the ingredient list and public documents. 2 of them hold up. The rest are only partly right or have nothing behind them.
Claims translated from Korean, originals preserved.
backed by evidence2
- #SuitableForAcneProneSkin
Korean original
#여드름성피부사용적합
- Whitening
Korean original
미백
likely, not proven5
- Acne-prone skin moisture supply + sebum and dead skin care!
Korean original
여드름성 피부 수분공급 + 피지각질케어!
- This toner controls excess sebum and gently exfoliates dead skin cells, aiding in improving your skin texture.
- No need for cotton pads with our no-rinse, non-sticky formula.
- Niacinamide Reduces the appearance of blemishes
- For acne-prone skin moisture clear toner
Korean original
여드름성 피부용 수분 투명 토너
partly backed3
- For acne-prone skin trouble*moisture clear toner
Korean original
여드름성 피부를 위한 트러블*수분투명 토너
- Hydro Active Toner for Acne-Prone Skin, Reduce Excess Oil, Improves The Skin Texture, Non-comedogenic Tested
- Zinc Provides soothing effect and controls excess sebum
overstated ad line2
- Dipotassium glycyrrhizate Activates skin turnover to help care for dead skin cells
- Changes in troubled skin after single use: Pore volume 44.0% decrease, Excess sebum amount 51.8% decrease, Dead skin cells 57.3% decrease
Each line is quoted as the brand published it, and each one was read on its own against the ingredient list and the documents the brand publishes.
What else is worth seeing?
Products we read alongside this one.