Isntree Hyper Acid 4 AHA BHA PHA LHA 30 Serum 20ml
Buy more, save more: up to 15% off, auto-applied at the cart
- Expected delivery: 7–14 business days
- Free shipping over $50 USD
- 15-day returns on unopened items
- 100% authentic, original products
Buy more, save more: up to 15% off, auto-applied at the cart
Isntree Hyper Acid 4 AHA BHA PHA LHA 30 Serum 20ml is an intensive exfoliating serum designed to remove dead skin cells, refine uneven texture, and improve the appearance of clogged pores for a smoother, clearer-looking complexion.
Formulated with Gluconolactone (14.61%), Lactic Acid (9.68%), Glycolic Acid (5.6%), Salicylic Acid (0.1%), Citric Acid (0.02%), and Capryloyl Salicylic Acid (0.01%). This combination of AHA, BHA, PHA, and LHA provides multi-acid exfoliating care, while Niacinamide, Glycerin, and Allantoin complement the formula with skin-conditioning benefits.
The concentrated acid blend targets rough patches, dullness, and accumulated surface buildup through multiple exfoliating pathways. Designed for occasional intensive texture care rather than everyday hydration, it is best introduced gradually according to skin tolerance, especially for those unfamiliar with high-strength exfoliating formulas.
Water, Gluconolactone (14.61%), Lactic Acid (9.68%), Methylpropanediol, Glycolic Acid (5.6%), Potassium Hydroxide, 1,2-Hexanediol, Diethoxyethyl Succinate, Glycerin, Xanthan Gum, Polyglyceryl-10 Laurate, Acacia Senegal Gum, Polyglyceryl-10 Myristate, Glyceryl Caprylate, Niacinamide, Salicylic Acid (0.1%), Allantoin, Disodium EDTA, Ethylhexylglycerin, Peat Water, Citric Acid (0.02%), Hydroxypropyl Methylcellulose, Capryloyl Salicylic Acid (0.01%), Butylene Glycol, Potassium Sorbate, Charcoal Powder
We typically process and ship orders within 1 week, with shipping costs calculated at checkout based on your location and selected method. Free shipping is available for orders over $50, depending on the promotion. Once your order ships, you will receive a confirmation email with a tracking number to monitor your package’s status. Standard shipping usually takes 5-7 business days, while express options are available for faster delivery. If you need to change your shipping address after placing an order, please contact us as soon as possible. In case of lost or stolen packages, we recommend reaching out to the carrier first, but our support team is happy to assist. For returns, we accept items within 1 week, provided they are unused and in their original packaging. Refunds are processed within 3-5 business days after we receive and inspect the returned item. Exchanges are also available if you need a different size or variant of a product. If you have any questions about shipping or returns, feel free to contact our support team.
Sensitive & reactive
Redness & rosacea
Damaged barrier
Post-procedure
Acne & breakouts
Dark spots
Lines & firmness
Dehydration



Start barrier-first: fragrance-free cleansers, ceramide or cica moisturisers and mineral SPF. Add one active at a time, patch-tested. Shop the sensitive edit →
Days 0–3: calm with cica, panthenol and hydrogel masks, no actives. Days 3–14: PDRN, peptides or exosome serums. SPF 50 every day. See the aftercare edit →
PDRN is DNA fragments that support repair signals, exosomes are tiny vesicles carrying growth factors, NAD+ supports cellular energy. See them explained visually →
From Canada, the US and Korea, worldwide. Shipping is free over $50 USD / $70 CAD, and volume savings apply automatically. Shipping & FAQ →
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