Messing recently signed-on to star in NBC's new musical comedy Smash
, but the 42-year-old star still looks as radiant as she did on Will & Grace
. According to Somerville, that's partially due to peptide treatments. "Long-term use of peptides softens and strengthens the skin and encourages cellular repair," she says. Squeeze a few drops from Philosophy's When Hope is Not Enough capsules ($50, ulta.com
) into your daily moisturizer to work peptides into your routine.