Walnut face wash to remove blackheads Walnut Blackhead Removal Face Wash is enriched with active herbal ingredients that deeply cleanse and gently exfoliate facial skin to help remove blackheads. Walnut shell powder and natural salicylic acid gently exfoliate facial skin and help remove blackheads. Lemongrass oil, known for its astringent properties, reduces excess oil and helps tighten pores. How to use: Moisturize the face, apply a small amount of face wash and gently massage it all over the face, avoiding the delicate area around the eyes. Then wash the face and dry it with a towel.