Free shipping over $75 · Vegan · Fragrance-free · Cruelty-free

Learn / molecule library

Learn the molecule before you buy the bottle.

Answer-first guides, ingredient pages, routine protocols, and comparison tables for single-active skincare.

Take the skin quiz -> Browse ingredients

Start here

Choose your path.

For shoppers, readers, and anyone trying to simplify an overbuilt top shelf.

01Find your first serumA guided match for smoothing, firming, brightening, hydration, repair, or hair-density support. 02Build the ritualAM and PM guidance for introducing one active without overwhelming your skin. 03Compare the activesINCI names, concentration style, routine role, and product links in one searchable glossary.

Pillar guide / updated this month

The Seralune Guide to Peptide Skincare

Read the guide
GoalBest starting serumActive type
Expression linesArgirelineSignal peptide
FirmnessMatrixyl 3000Matrikine peptide blend
HydrationHyaluronic AcidHumectant
ClarityAzelaic Acid10% dicarboxylic acid

Articles / citations and clarity

Fresh from the lab notebook

Last updated Jun 4, 2026

The Seralune Guide to Peptide Skincare

A plain-English guide to peptide serums, single-active routines, and how to choose the right bottle for your skin goal.

Read article

Last updated Jun 4, 2026

How to Build a Single-Active Skincare Routine

A simple ritual for choosing one active per step, avoiding clutter, and keeping your skin barrier comfortable.

Read article

Last updated Jun 4, 2026

Peptides vs. Acids: What Belongs in Your Routine?

Peptides and acids can both be useful, but they do different cosmetic work. Here is the calm way to choose.

Read article

Last updated Jun 4, 2026

Best Serum for Fine Lines: How to Choose a Smoothing Active

A practical guide to choosing between Argireline, SYN-AKE, SNAP-8, and firming peptides for the look of fine lines.

Read article

Last updated Jun 4, 2026

Matrixyl vs. Argireline: Which Peptide Serum Comes First?

Matrixyl and Argireline are both peptide serums, but they support different cosmetic goals. Here is the clean comparison.

Read article

Last updated Jun 4, 2026

How to Use Hyaluronic Acid Serum for Plumper-Looking Skin

Hyaluronic acid works best when it is layered correctly. Learn when to apply it, what to pair it with, and what to expect.

Read article

Last updated Jun 4, 2026

Azelaic Acid Serum Guide for Tone, Clarity, and Calm-Looking Skin

Learn how 10% azelaic acid fits into a simple routine for the appearance of uneven tone, visible redness, and congestion.

Read article

Ingredient glossary / all actives

Every active, clearly explained

Open the glossary
Argireline Acetyl Hexapeptide-8 SNAP-8 Acetyl Octapeptide-3 SYN-AKE Dipeptide Diaminobutyroyl Benzylamide Diacetate Adifyline Acetyl Hexapeptide-38 Matrixyl 3000 Palmitoyl Tripeptide-1 and Tetrapeptide-7 Matrixyl Synthe'6 Palmitoyl Tripeptide-38 Syn-Coll Palmitoyl Tripeptide-5 Bio-Elastin Palmitoyl Pentapeptide (Palm-12 Biopeptide-EL) DMAE-Silica DMAE + Silica Complex Glutathione L-Glutathione Azelaic Acid Azelaic Acid 10% Hyaluronic Acid Sodium Hyaluronate (multi-weight) GHK-Cu Copper Tripeptide-1 AHK-Cu Acetyl Tripeptide-Cu Biotinyl Tripeptide-1 Biotinoyl Tripeptide-1