The King C. Gillette Beard Volume Serum offers a noticeable, cumulative thickening effect, making your beard visibly fuller and feeling that way after just 14 days. The beard hair is completely enveloped from root to tip. The serum also contains caffeine and the signature King C. Gillette fragrance for the ultimate grooming experience for your facial hair. A beard is more than just hair on your face. Suitable for short or long beards, use the King C. Gillette Beard Volume Serum daily for the best-looking beard.