
Nailplex Pen · Nano Keratin Complex
Strength, engineered.
Precision care for nails that break, peel, and split.
01 — The problem
When the nail's structure breaks down.
- Surface stress
- Dehydration
- Layer separation
- Breakage
Keratin layers that lose moisture and cohesion begin to lift and separate. What looks like peeling or splitting is structure coming apart, one layer at a time.
02 — The mechanism
Apply precisely.
Support the nail's structure.
Help defend against everyday breakage.
Nano Keratin Complex
Our hydrolysis process creates keratin molecules designed to be up to 4× smaller than average keratin molecules.*
*Use only if this claim is supported by PharmaBlue Labs' substantiation, testing, and applicable advertising requirements.
03 — The technology
Smaller molecules. Deeper care.
Hydrolyzed for precision.
Nailplex Pen uses a hydrolyzed keratin complex engineered for a refined molecular profile—made to support the look and feel of stronger, healthier-looking nails.
- 01Precision pen application
- 02Clear, lightweight finish
- 03Designed for daily nail-care routines
Conventional
Average keratin
Nailplex
Nano Keratin Complex
Illustration for educational purposes; not to scale.

3 ml · 0.10 fl oz
04 — Nailplex Pen
Your daily ritual for stronger-looking nails.
- Supports the appearance of stronger nails
- Helps improve the look of peeling and splitting
- Odorless formula
- Formaldehyde-free
- Paraben-free
- Made in the USA
How to use


05 — Nailplex Shield
Protection, made visible.
Complete your nail-strengthening ritual with Nailplex Shield. A 15 ml brush bottle for your nightly routine—the protective partner to the Pen.
The system
Nailplex System — Pen + Shield
The Pen goes in your bag for the daytime. The Shield lives on your nightstand. Six weeks is easier to finish when you have both.
06 — Proof
Made for consistency.
Nails grow slowly, so we designed a routine you can actually keep. Every claim we make is cosmetic, and every proof point here is one we can stand behind.
Made in USA
Formulated and filled domestically.
Formaldehyde-free
No formol or formaldehyde-releasing agents.
Paraben-free
Preserved without parabens.
Odorless
Aqueous formula. Free of organic solvents.
Registered facility
Facility and product registration details available on request.
6 wks
Roughly how long a fingernail takes to grow out. Results vary from person to person.
Customer reviews
Before & after
Product testing

07 — Our story
Built from a personal problem. Backed by purpose.
PharmaBlue Labs was created from a simple frustration: nails that kept breaking, despite trying everything. We are building thoughtful, science-led care for beauty concerns that deserve more attention.
08 — Questions
