Skincare Science & Insights
The Laboratory
Science backed skincare insights from the founder of Glow Cycle Lab. Exploring ingredient interactions, seasonal rituals, and what your skin is actually telling you.
Skin Flooding: My Guide to Layered Hydration
A K beauty layering ritual rooted in damp skin and watery layers, and the products I reach for at every step.
Kristina Coppola · 14 min
PDRN and Salmon DNA: The Secret Behind Korea's Glass Skin Obsession
What the ingredient actually does, how we use it professionally, and the products worth knowing.
Kristina Coppola · 11 min
The Edit: My Favorite Skincare Products
A curated lineup of the products I actually reach for, and the science behind why each one earns its place.
Kristina Coppola · 9 min
Skin of Color: A Practical Guide to Safe and Effective Treatments
What to seek out, what to approach with caution, and what to avoid, for darker skin tones, in clinic and at home.
Kristina Coppola · 10 min
The Hormone Shift: What Perimenopause and Menopause Really Do to Your Skin
A science grounded guide to the biological changes behind menopausal skin, and the ingredients that actually help.
Kristina Coppola · 10 min
Your Gut Is Talking to Your Skin. Are You Listening?
The connection between your digestive system and your complexion is one of the most compelling frontiers in modern dermatology.
Kristina Coppola · 11 min
Peptides: The Quiet Architects of Younger Skin
No irritation, no downtime. Just steady, cumulative results at the cellular level.
Kristina Coppola · 6 min
The Seasonal Skin Shift: Why Your Winter Ritual Betrays You Every Spring
The biology behind that familiar spring feeling, and what to actually do about it.
Kristina Coppola · 5 min
Niacinamide and Vitamin C: The Brightening Duo Explained
Two of skincare's most evidence backed ingredients, what they do differently, and why they work better together.
Kristina Coppola · 6 min
The Retinoid Family: Every Form, Explained
From prescription tretinoin to plant derived bakuchiol, a complete guide to vitamin A in skincare.
Kristina Coppola · 8 min
AHAs and BHAs: The Acids That Actually Do Something
A clear guide to chemical exfoliation, how it works, and which acid is right for your skin.
Kristina Coppola · 6 min
What Goes With What: The Ingredient Pairing Guide
The combinations that amplify results, and the ones that quietly undermine them.
Kristina Coppola · 6 min
The Korean Skincare Shift: How a Different Philosophy Changed My Skin Completely
What happens when you stop fighting your skin and start listening to it instead.
Kristina Coppola · 5 min
Building a Ritual for Your Skin Type
Not every skin needs the same ingredients. Here's how to build a ritual that actually fits yours.
Kristina Coppola · 7 min