Item Number: HAIR PLUS – Serum 16 oz whey 16oz Serum: We have the ideal solution for you Hair plus serum. Our anti-fall serum promotes healthy growth; It’s made with cinnamon and vitamins a, b, b12, c, d, and e. You will love to see how your hair grows longer and longer. HOW TO USE: SERUM is applied before shampooing, letting it rest for 5 to 10 minutes and then removing it with plenty of water and proceeding as usual. This product is 100% guaranteed.