--- product_id: 541820084 title: "ISNTREE Hyper Acid 4 (AHA BHA PHA LAH) 30 Serum 20ml | Wash-off serum | Gentle Chemical Exfoliant | Korean Skincare" brand: "isntree" price: "€ 1.65" currency: EUR in_stock: false url: https://www.desertcart.pt/products/541820084-isntree-hyper-acid-4-aha-bha-pha-lah-30-serum store_origin: PT region: Portugal --- # Charcoal Infusion 1-Minute Rinse 30% Acid Blend ISNTREE Hyper Acid 4 (AHA BHA PHA LAH) 30 Serum 20ml | Wash-off serum | Gentle Chemical Exfoliant | Korean Skincare **Brand:** isntree **Price:** € 1.65 **Availability:** ❌ Out of Stock ## Summary > ✨ Unleash Your Glow in Just 60 Seconds! ## Quick Answers - **What is this?** ISNTREE Hyper Acid 4 (AHA BHA PHA LAH) 30 Serum 20ml | Wash-off serum | Gentle Chemical Exfoliant | Korean Skincare by isntree - **How much does it cost?** € 1.65 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/541820084-isntree-hyper-acid-4-aha-bha-pha-lah-30-serum) ## Best For - isntree enthusiasts ## Why This Product - Trusted isntree brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Charcoal Magic:** Infused with charcoal for a deep cleanse and detox. - • **Exfoliate Like a Pro:** Experience a salon-quality exfoliation in just 1 minute! - • **Gentle Yet Effective:** Say goodbye to dead skin without irritation. - • **Powerful Acid Fusion:** Harness the power of AHA, BHA, PHA, and LHA for radiant skin. - • **Korean Skincare Innovation:** Join the K-beauty revolution with this cutting-edge formula. ## Overview ISNTREE Hyper Acid 4 is a revolutionary 30% rinse-off serum featuring a potent blend of AHA, BHA, PHA, and LHA designed for intensive exfoliation. This gentle yet effective formula works in just one minute to smooth skin texture, even out skin tone, and reduce excess sebum production, all while being infused with charcoal for an added detoxifying effect. ## Description Full description not available ## Features - New concept AHA, BHA, PHA and LHA 30% rinse-off serum, designed for intensive exfoliation after just one minute of use. - Key ingredients: Optimized 30% ACID 4 Formulation (AHA 15.3%, BHA 0.1%, PHA 14.61%, LHA 0.01%) This is a high-performance rinse-off exfoliant that helps smooth the skin texture and even out the skin tone by gently removing the dead skin cells and reducing the excess sebum production. - 1 minute rinse-off serum with an unique charcoal color and medium-high viscosity. - How to use: After cleansing, apply 2-3 drops on the skin, avoiding the eye and lip areas. Manage the product into the skin for about 1 minute, and rinse thoroughly with lukewarm water. ## Product Details - **Scent:** Aloe - **Special Ingredients:** alpha_hydroxy, glycolic_acid - **Brand:** IsNtree - **Item Form:** Serum - **Item Weight:** 0.06 Kilograms ## Images ![ISNTREE Hyper Acid 4 (AHA BHA PHA LAH) 30 Serum 20ml | Wash-off serum | Gentle Chemical Exfoliant | Korean Skincare - Image 1](https://m.media-amazon.com/images/I/51X0YIlYIPL.jpg) ![ISNTREE Hyper Acid 4 (AHA BHA PHA LAH) 30 Serum 20ml | Wash-off serum | Gentle Chemical Exfoliant | Korean Skincare - Image 2](https://m.media-amazon.com/images/I/61g+YZlrxzL.jpg) ![ISNTREE Hyper Acid 4 (AHA BHA PHA LAH) 30 Serum 20ml | Wash-off serum | Gentle Chemical Exfoliant | Korean Skincare - Image 3](https://m.media-amazon.com/images/I/619jFLa0FzL.jpg) ![ISNTREE Hyper Acid 4 (AHA BHA PHA LAH) 30 Serum 20ml | Wash-off serum | Gentle Chemical Exfoliant | Korean Skincare - Image 4](https://m.media-amazon.com/images/I/51-+SuE5RpL.jpg) ![ISNTREE Hyper Acid 4 (AHA BHA PHA LAH) 30 Serum 20ml | Wash-off serum | Gentle Chemical Exfoliant | Korean Skincare - Image 5](https://m.media-amazon.com/images/I/61Y8JpaLDRL.jpg) ## Questions & Answers **Q: How often should I use it?** A: This is a high-concentrated exfoliant serum that contains four types of acids that help reduce dead skin cells and excessive sebum production. Recommended to use the product 1 to 2 times a week. **Q: Why does my skin sting and turn red when I use it?** A: It is recommended to do a patch test before use. This is a chemical exfoliant containing a high concentration of AHA, BHA, PHA and LHA, thus you may feel a tingling sensation during the application of the product. **Q: Can I use this product during the day?** A: It is recommended to use the product at night when there is no direct sunlight. However, if you use it during the day, please apply and reapply sunscreen throughout the day to protect your skin. **Q: Can I just wipe the product off?** A: It is recommended to rinse your face with water after use. **Q: Can I leave the product for more than 1 minute?** A: Due to the high-concentration acids, if you leave the product on the skin for too long, it may cause irritaion. It is recommended to remove the product from the skin one minute after application. ## Frequently Bought Together - ISNTREE Hyper Acid 4 (AHA BHA PHA LAH) 30 Serum 20ml | Wash-off serum | Gentle Chemical Exfoliant | Korean Skincare - ISNTREE Hyper Vitamin C 23 Serum 20ml | Pure Vitamin C | Even Skin Tone --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/541820084-isntree-hyper-acid-4-aha-bha-pha-lah-30-serum](https://www.desertcart.pt/products/541820084-isntree-hyper-acid-4-aha-bha-pha-lah-30-serum) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-23*