Behind the NAD+ Firming Serum is one of the most-studied molecules in all of biology...
A coenzyme called NAD+, first described by British biochemists Arthur Harden and William Young in 1906. Their research went on to share the 1929 Nobel Prize in Chemistry.
Published research describes NAD+ as the fuel for sirtuins — the enzymes skin cells rely on to stay resilient and to hold back the enzymes that break down collagen.*
And two published findings explain why your jawline seemed to change almost overnight...