Step 2 -  Chocolate Extract Keratin Treatment Complex. Tests have shown that the grape extract keratin treatment complex works wonder on rougher hair. Grape seed oil and extract are excellent moisturizers with great rejuvenating and regenerating qualities. Rich in antioxidants and vitamin E, vitamin C, Beta-Carotene, and vitamin D, when combined with natural keratin and other hair treatment ingredients our Grape Extract Keratin Treatment Complex restores health, treats, and softens the wildest hair, eliminating frizz and reducing volume.