Peptides are having a moment but unlike many skincare trends, the science behind them is genuinely compelling. Here's a clear-eyed look at what peptides are, how they work, and whether they deserve a place in your routine.
The Science in Plain English
Peptides are short chains of amino acids the building blocks of proteins like collagen, elastin, and keratin. When applied topically, certain peptides signal your skin to produce more collagen, essentially "tricking" it into repair mode. Others inhibit muscle contractions (similar in concept to neurotoxins, but topically and far more subtly) to soften expression lines.
Why Peptides Matter for Aging Skin
Collagen production drops roughly 1% per year after your mid-20s. By the time visible aging appears, you've already lost significant structural support. Peptides help address this at the cellular communication level. They don't just sit on the surface, they send signals.
Key benefits:
- Support collagen and elastin synthesis
- Improve skin firmness and elasticity
- Reduce the appearance of fine lines
- Strengthen the skin barrier
- Work well alongside other actives (unlike some ingredients that compete)
How to Use Peptides
Peptides are typically found in serums and moisturizers. Apply after cleansing and before heavier creams. They're gentle enough for daily use and work well morning and night. Ours is in Perfect Face cream.
Pairing Peptides With Vitamin C
Medi-C Plus and peptides are a powerful anti-aging duo. Vitamin C is essential for collagen synthesis. It’s the cofactor your body needs to actually build the collagen that peptides signal for. Our Medi-C Plus Serum delivers a clinically effective concentration of stabilized Vitamin C, making it an ideal companion to any peptide-forward routine.
The Bottom Line
Peptides are one of the few "trending" ingredients with real clinical backing. If you're serious about long-term skin health, they belong in your routine.