Collagen supplements are not all sourced the same way, and the source affects allergies, dietary fit, and even how the product works. Here is how marine, bovine, and plant-based options actually compare.
Collagen peptide powders promise skin, hair, and joint support, but the path from a scoop of powder to any visible effect is longer than the marketing suggests. Here is what actually happens and what the evidence supports.
“Peptide serum” on a label tells you almost nothing about quality. Here is what actually matters when comparing products, from ingredient naming to packaging to price.
Peptides and retinol both show up in anti-aging routines, but they are not interchangeable. Here is how the two actually differ, and a practical way to decide where to start.
Not every peptide in a serum does the same job. This field guide breaks down the main functional categories, what each one is built to do, and which named ingredients fall into each group.
Copper peptides show up in serums under a few different names, but GHK-Cu is the one with the longest research history. Here is what it actually does and how it differs from other peptide types.
What the Beauty Magazine Covers
Here, we explain the research behind peptides and cover the skincare formulations built on that science.
How We Cover This
We break down what peptides actually are, how they work in skincare and supplements, and what published research and regulatory guidance actually support. Every claim here is limited to what the evidence backs: we describe what an ingredient may support, not what it treats or cures.
Alongside the science, we cover established luxury skincare, including formulations from houses like La Prairie that apply peptide research in practice. Reviews and guides in this category focus on ingredients, formulation, and what a product is actually built to do, not just the name on the box.
Where to Start
New to the topic? Start with our guide to what peptides actually are, then explore the specific categories below: skincare applications, oral supplements, and the research behind the current interest in this ingredient.