Hello, please check the usage rate. on the product details page. The staff copied it for me.
Usage: For skin care products. moisturize In the form of gels, serums, lotions or creams or products for scalp care such as shampoo, conditioner, hair mask Mixing method: mix in water Usage rate: 0.5-5% (use 3- 5% for skin and 0.5-1% for leave-on hair) Product characteristics: clear liquid, pH 6-7 Solubility: soluble in water. Storage: If long-term storage is required. Store at room temperature Avoid sunlight, heat, age at least. 2 years