BEST NAIL TREATMENT
The award-winning serum for your nails.
PEOPLE named it Best Nail Treatment of 2026, and it's easy to see why. LONDONTOWN Peptide Serum Concentrate is the first water-based serum for nails. With 12% actives and Cranberry Peptides, it absorbs in seconds to repair, hydrate, and strengthen from the cuticle up.
THE LONDONTOWN DIFFERENCE
3 reasons your nails need
a serum like this.
12% actives. One drop. Skincare-grade recovery.
12% actives go deeper than any oil.
Most cuticle care sits on the surface. Peptide Serum Concentrate is a water-based gel-serum that absorbs in seconds, delivering our highest concentration of active ingredients straight to the base of the nail, where growth and recovery actually start.
Cranberry Peptides reinforce nails from the base up.
The hero ingredient. Cranberry-derived peptides reinforce nail structure and support flexibility over time, so nails grow in stronger and bend before they break. Hibiscus Extract layers in antioxidant power to counter brittleness and dullness.
One drop. Three times a week. No fuss.
A precision tip applicator delivers exactly one drop. Massage in. Done. No salon, no prep, no greasy residue. The easiest step in your routine, and the most powerful.
Inside the 12%.
Powered by peptides. Proven to transform.
Every ingredient in Peptide Serum Concentrate was chosen for a reason. Four ingredient stories layer into one supercharged formula, so every drop delivers strength, antioxidant power, and deep hydration at once.
Hibiscus Extract
The antioxidant power
Antioxidant-rich, Hibiscus helps counter the oxidative stress that contributes to brittleness, dullness, and slow recovery. Especially powerful after gel or acrylic removal.
Aloe + Glycerin + D-Panthenol
The moisture trio
Aloe cools and soothes stressed cuticles on contact. Glycerin draws hydration in. D-Panthenol supports the nail's natural moisture barrier so cuticles stay supple, never dry.
Water-Based Gel Technology
The delivery system
A weightless, water-based gel that absorbs in seconds, delivering 12% actives directly to where new nail growth begins. Fast-acting, fully absorbed, never greasy.
Cranberry Peptides
The structural core
Cranberry-derived peptides reinforce nail structure at the base and support flexibility, so nails grow in stronger and bend before they break.
SHOP
PEPTIDE SERUM CONCENTRATE
A first-of-its-kind nail and cuticle serum from LONDONTOWN, formulated with 12% actives and Cranberry Peptides for visible repair, recovery, and stronger regrowth. One drop, three times a week.
WHAT MAKES IT SPECIAL
- 12% actives. Our highest concentration of restorative ingredients ever, formulated for intensive recovery, not just maintenance.
- Cranberry Peptides reinforce nail structure and support flexibility for stronger, break-resistant growth.
- Water-based gel formula absorbs in seconds. Fast-acting, never greasy.
- Moisture-locking trio of Aloe, Glycerin, and D-Panthenol soothes stressed cuticles and restores elasticity.
- Vegan, cruelty-free, and gluten-free.
HOW TO USE
Start with clean nails. Apply one drop of Peptide Serum Concentrate to each cuticle area and massage in circular motions until fully absorbed. If nails are polished, apply to cuticles only. Use three times a week, or daily for intensive recovery.
INGREDIENTS
Key Ingredients:
Cranberry Peptides: Reinforce nail structure and support flexibility.
Hibiscus Extract: Antioxidant-rich, helps counter brittleness and dullness.
Aloe + Glycerin + D-Panthenol: Moisture-locking trio that hydrates and restores.
Full Ingredient List: Aqua (Water), Glycerin, Propylene Glycol, Trisodium Phosphate, Panthenol, Aloe Barbadensis Leaf Juice, Hibiscus Sabdariffa Flower Extract, Vaccinium Macrocarpon Fruit Extract, Carbomer, PEG-40 Hydrogenated Castor Oil, Parfum, Ethylhexylglycerin, Alcohol, Tris(Tetramethylhydroxypiperidinol) Citrate, Caprylyl Glycol, 1,2-Hexanediol, Citric Acid, Potassium Sorbate, Sodium Benzoate, Tocopherol, Phenoxyethanol, CI 17200, CI 14700.
Why a serum is the upgrade your nails have been missing.
🧪 12% Active Recovery
Our highest concentration of restorative ingredients ever, designed for visible repair, not surface upkeep.
🍒 Powered by Cranberry Peptides
Reinforces nail structure at the base and supports flexibility, so nails grow in stronger and resist breakage.
💧 One Drop. Zero Fuss.
Our highest concentration of restorative ingredients ever, designed for visible repair, not surface upkeep.
🐇 Clean, Vegan, Cruelty-Free
Gluten-free and certified vegan, formulated without anything you don't want near your nails.
Frequently Asked Questions
How is Peptide Serum Concentrate different from cuticle oil?
Cuticle oil sits on the surface to lock in moisture. Peptide Serum Concentrate is a water-based serum that absorbs in seconds, delivering 12% actives directly to the cuticle base. Oil seals; this rebuilds. They work beautifully together: serum first, oil second.
Can I use it on polished or gel nails?
Yes. Apply one drop to each cuticle area and massage in. If your nails are polished, apply to the cuticle only. The formula won't disrupt polish or gel.
How often should I use it, and when will I see results?
Three times a week is the recommended frequency, or daily if your nails are extra dry or recovering from acrylics or gel. Most customers see softer, smoother cuticles within days, and stronger regrowth in two to four weeks.
How is this different from LONDONTOWN Get Strong Nail Hardener?
Get Strong is a topical hardener applied to the nail plate to fortify polish-free nails. Peptide Serum Concentrate is a treatment serum applied to the cuticle and base of the nail to deliver actives where new growth begins. Use Get Strong for surface strength. Use Peptide Serum Concentrate for deep recovery and regrowth.
2M+ verified customersPEPTIDE SERUM CONCENTRATE
Your nails deserve skincare too.
LONDONTOWN Peptide Serum Concentrate is the first serum built for nails, with 12% actives in every drop. Recovery starts the moment you apply.
Beauty without compromise.