SKINPEDIA

The Science of Peptides in Skincare

As a skincare expert, I've spent years studying how different ingredients interact with our skin across various environments. Among all the innovations in modern skincare, peptides stand out as one of the most fascinating and scientifically proven ingredients.

Laura Zackarya
My fascination with peptides began when I discovered how these tiny protein fragments could dramatically influence skin health. What makes peptides particularly interesting is their ability to adapt and work differently across various climates and environments - a key consideration in our approach to skincare.
DEFINITION OF PEPTIDES
Peptides are short chains of amino acids, the fundamental building blocks of proteins. According to research published in Cosmetics journal, these molecules were first described by Emil Fischer and Hofmeister in the early 19th century, with the first peptide synthesis published in 1901. The term "peptide" comes from the Greek word "pepton" meaning digested, reflecting their nature as smaller protein fragments.

In skincare, peptides serve as crucial signaling molecules that can trigger various cellular processes including:
- Cellular communication
- Protein regulation
- Cell proliferation and migration
- Inflammation control
- Angiogenesis (blood vessel formation)
- Melanogenesis (pigment production)
THE FOUR FAMILIES OF SKINCARE PEPTIDES
Through extensive research, we've identified four main categories of peptides, each serving a unique purpose:
Signal Peptides
  • Function: Stimulate collagen, elastin, and other protein production
  • Best for: Anti-aging, skin firmness
  • Environmental note: Particularly beneficial in dry climates where skin needs extra support
Enzyme Inhibitor Peptides
  • Function: Prevent breakdown of existing collagen
  • Best for: Preserving skin structure
  • Environmental note: Extra valuable in high-UV environments
Neurotransmitter Inhibitor Peptides
  • Function: Reduce muscle contraction that leads to expression lines
  • Best for: Fine lines and wrinkles
  • Environmental note: Effectiveness can vary based on humidity levels
Carrier Peptides
  • Function: Help deliver trace elements like copper to skin cells
  • Best for: Overall skin health and healing
  • Environmental note: Particularly beneficial in polluted urban environments
OPTIMAL USE AND ENVIRONMENTAL CONSIDERATIONS
The effectiveness of peptides can vary significantly based on environmental factors. Here's how to optimize their use:
  • Humid Climates: Focus on lighter peptide formulations that won't feel heavy
  • Dry Climates: Combine peptides with additional hydrating ingredients
  • High-UV Environments: Pair peptides with robust sun protection
  • Urban Areas: Prioritize carrier peptides that support skin barrier function
SYNERGISTIC COMBINATIONS
Research demonstrates peptides work particularly well when combined with:

1. Vitamin C
- Enhances collagen production
- Improves antioxidant protection
- Supports skin barrier function

2. Niacinamide
- Boosts peptide absorption
- Enhances barrier repair
- Improves overall skin appearance

3. Hyaluronic Acid
- Increases hydration
- Supports peptide delivery
- Enhances overall efficacy

APPLICATION TIPS FOR MAXIMUM BENEFITS
  1. Apply to clean, slightly damp skin
  2. Use before heavier products
  3. Allow 30 seconds for absorption
  4. Follow with appropriate moisturizer for your climate
  5. Always use sun protection during day



THE FUTURE OF PEPTIDE TECHNOLOGY

Current research is focusing on developing even more targeted peptides that can adapt to different skin conditions and environments. At LAURA ZACKARYA, we're particularly interested in how peptides can be optimized for different climatic conditions to provide truly personalized skincare solutions.
For the love of skin science,
always yours, Laura Z.

Sources: Research compiled from International Journal of Molecular Sciences, Current Chemical Biology, and Cosmetics journal publications.
CONTACT ME
(12) contacts