Viktairy Salicylic Acid Powder Ingredients: 2-Hydroxybenzoic Acid > 99.5%Recommended Concentration: 0.2-2%Storage: Keep in an airtight container away from heat and direct sunlight. Storage in a cool, dry place.Pure Salicylic Acid: NON-TOXIC, VEGAN, GLUTEN-FREE, NON-GMO. Salicylic acid is oil soluble, it should be dissolved in a solvent first before adding to your formula, suggested solvents for salicylic acid: Ethyl alcohol, Propylene glycol, Glycerin, Castor oil, Sodium lactate. To prevent recrystallization, sodium citrate can be added to the solution. To facilitate dissolution, you can first grind the salicylic acid crystals into fine powder, and then heat the mixed solution to 120-130℉ (48-54℃). Salicylic acid works best at PH 3.5 - PH 4.0, you can adjust the pH using baking soda for higher or citric acid for lower PH levels. Cautions : Please wear gloves and a mask before use.Avoid contact with eyes, mouth, and other sensitive areas.In case of any allergies, conduct a patch test before use. Discontinue use if irritation occurs.Keep out of reach of children.Note: Salicylic acid is a potent substance, so please follow the above cautions carefully to avoid any adverse reactions or harm. Kojic Acid Powder L Ascorbic Acid Powder Ferulic Acid Powder Menthol Crystal D Panthenol Buying Options Add to Cart Buying Options Add to Cart Add to Cart Customer Reviews — 4.2 out of 5 stars 78 — 4.6 out of 5 stars 397 4.6 out of 5 stars 111 Price — no data $9.99$9.99 — no data $9.55$9.55 $12.99$12.99 NET WT. 100 Gram 100 Gram 35 Gram 4 oz 1 oz