28mm 200ml HDPE 33g Matte Black/Beige Empty Plastic Bottle for Shampoo Lotion Cosmetic Packaging

HDPE is chemically inert and resistant to acids, alkalis, surfactants, and alcohols; it is compatible with the vast majority of hair care formulations—such as shampoos, conditioners, and cleansing lotions—without reacting with the contents or leaching harmful substances that could compromise product stability.
It does not absorb ingredients or pigments, preventing the bottle from soaking up essential oils or colorants, thereby ensuring the product's fragrance and color remain stable throughout its shelf life.
It can be finished with light-blocking or matte effects (such as the off-white or black versions shown in your image) to block UV rays, prevent the oxidation and degradation of light-sensitive ingredients, and extend the product's shelf life.