Table of Contents
Introduction
If you’ve ever stared at your nails, wishing they would grow just a bit faster or stronger, you’re not alone.
Nail growth is influenced by a complex interplay of biology, nutrition, lifestyle habits, and even your age.
Whether you’re dealing with weak peeling tips or want your nails to grow longer between manicures, science-backed strategies can help.
From targeted supplements to dermatologist-recommended products, understanding the underlying mechanics of how nails grow is the first step to taking control of their health.
In this guide, we’ll explore the science of nail growth, dive into proven tips to speed it up, and recommend top products to help you achieve visibly stronger nails.
How Nails Grow: The Science
Nail growth is a slow but continuous process driven by your body’s cellular turnover and nutritional health. Here’s how it works under the surface.
Growth Rate (Fingernails vs. Toenails)
Nails are composed of keratin, a protein that also makes up your hair and the outer layer of your skin.
The visible part of your nail grows from a structure under the skin called the nail matrix, where new cells are constantly formed. These cells harden and push older ones forward, creating the nail plate.
Fingernails grow at an average rate of 3.5 millimeters per month, translating to roughly one-tenth of an inch.
Toenails grow much more slowly, only about 1.6 millimeters per month. This difference is mainly due to reduced blood flow in the lower extremities and decreased use or stimulation of the toes in everyday tasks.
In optimal conditions, it may take a fingernail about six months to grow from base to tip, while a toenail can take up to 18 months.
Factors That Slow Growth (Age, Nutrition)
Nail growth tends to slow with age due to decreased cellular turnover and hormonal changes that affect keratin production.
Other significant factors include poor nutrition, chronic stress, systemic illnesses, and inadequate hydration.
Low levels of essential nutrients such as biotin, vitamin B12, iron, and zinc can negatively impact nail health.
For example, iron-deficiency anaemia often presents as brittle, spoon-shaped nails, while lacking B12 may cause ridges or discolouration.
As nails are an outward expression of internal health, poor nail growth can signal broader nutritional deficiencies that should not be ignored.
8 Proven Ways to Speed Up Nail Growth
From key supplements to targeted topical treatments, here are research-backed methods to help you grow stronger, healthier nails faster.
1. Biotin Supplements (Dosage: 2.5mg/day)
Biotin, also known as vitamin B7, is one of the most recommended supplements for nail growth. It helps improve keratin structure, making nails thicker, less prone to breakage, and faster growing.
Multiple studies have shown that a daily dose of 2.5 milligrams can significantly enhance nail thickness and reduce splitting in individuals with brittle nails.
Biotin is water-soluble, meaning any excess is excreted through urine, making it generally safe for daily use.
2. Nail Growth Serums (Peptide-Based)
Topical nail serums, especially those containing peptides and amino acids, help fortify the nail matrix and stimulate growth at the cellular level.
Peptides are short chains of amino acids that signal skin and nail cells to produce more collagen and keratin, the building blocks of strong nails.
Using a peptide-based nail serum daily can result in noticeable improvements in nail length and resistance to damage within just a few weeks. Choose formulas enriched with vitamins like E and B5 for added nourishment.
3. Increase Protein Intake
Keratin, the primary structural component of nails, is a protein. To support optimal keratin production, your body needs sufficient dietary protein.
Lean meats, eggs, legumes, and dairy products are excellent sources. If you follow a plant-based diet, prioritize protein-rich foods like tofu, quinoa, lentils, and soy.
Consistent protein intake ensures that your body has the amino acids to strengthen nails from the inside out, reducing brittleness and improving overall growth.
4. Hydrate Consistently
Dehydration impacts not just your skin but also your nails. Nails become dry and brittle without enough moisture, making them more prone to breaking before they grow.
Drinking at least eight cups of at least eight cups of adequate water daily is fundamental. You should also hydrate externally with hand creams and cuticle oils that lock in moisture.
Well-hydrated nails are more flexible, less prone to splitting, and can grow longer without damage.
5. Minimize Chemical Exposure
Frequent exposure to harsh chemicals found in cleaning agents, nail polish removers, and even certain nail products can weaken nails over time.
Acetone-based removers, in particular, strip the nails of natural oils, leading to dryness and brittleness.
Wearing gloves when cleaning and opting for acetone-free removers helps protect your nails and maintain their natural strength as they grow.
6. Practice Proper Nail Hygiene
Keeping your nails clean and trimmed prevents infection and supports a healthier growth environment.
Regularly file your nails to prevent snags that could lead to tearing, and avoid biting your nails or picking at your cuticles, which can damage the nail matrix.
Healthy grooming habits ensure that as your nails grow, they remain intact and free from preventable damage.
7. Massage Your Cuticles
Massaging the cuticles increases blood flow to the nail matrix, stimulating growth. Using a nourishing oil or moisturizer during massage further supports hydration and flexibility. Gentle, daily cuticle massages can encourage stronger nails over time
8. Use a Nail Strengthener
Formulas designed to reinforce the nail plate with keratin, calcium, and protein can prevent nail splitting and thinning.
Apply nail strengtheners 2–3 times a week and look for formaldehyde-free options enriched with botanicals for nourishment.
Best Products for Nail Growth
Not all nail care products are created equal. These dermatologist-approved picks are safe, effective, and designed to help you grow healthier nails from root to tip.
1. Cuticle Oils (Jojoba-Based) WONDER FAMILY
Jojoba-based cuticle oils are essential for maintaining the hydration and flexibility of your nails and surrounding skin.
Dry, cracked cuticles look unsightly and slow down nail growth by interfering with the nail matrix. WONDER FAMILY’s jojoba-infused formula mimics the skin’s natural oils. It penetrates deeply to restore moisture and elasticity.
Regular application improves circulation around the nail bed, supporting stronger and faster growth.
2. Nail Hardeners (Formaldehyde-Free) Brother Cosmetics
Weak, bendable nails that peel easily won’t grow long because they break before reaching full length.
Formaldehyde-free nail hardeners like Brother Cosmetics offer strengthening agents such as calcium, keratin, and protein-enriched formulas without the risk of chemical overexposure.
These hardeners support a protective barrier on the nail plate, preventing chipping and breakage as your nails grow.
3. Nail Hardeners Nail-Aid
Another standout in the hardener category is Nail-Aid, which includes formulas engineered explicitly for rapid growth.
These products use botanical oils, keratin proteins, and silica to reinforce thin nails and promote thickness.
With continued use, Nail-Aid can help close micro-cracks on the nail surface, making your nails less likely to snag or split as they lengthen.
4. Nail Growth Serum – ISDIN SI-NAILS
ISDIN’s SI-NAILS serum is clinically formulated to boost keratin and silica in the nail plate, helping weak nails grow longer and resist breakage.
Its easy-pen applicator allows precise treatment, especially around the cuticles and edges. Regular use visibly strengthens nails within 2–4 weeks.
5. Strengthening Base Coat – OPI Nail Envy
Infused with hydrolyzed wheat protein and calcium, this base coat supports nail resilience while reducing peeling and cracking.
It’s perfect for anyone who frequently wears polish but still wants to nourish their nails. OPI’s Nail Envy combines a polish’s shine with a treatment’s strength.
Frequently Asked Questions
On average, fingernails grow about 3.5 millimeters monthly, while toenails grow around 1.6 millimeters. Factors like age, nutrition, and overall health can influence this timeline.
No, nail polish does not stop nail growth. However, using harsh removers like acetone or frequently applying polish without breaks can weaken the nail plate and lead to breakage, which makes nails appear to grow slower.
Biotin, iron, vitamin B12, and zinc deficiency are commonly linked to slow or brittle nail growth. A balanced diet or targeted supplements can help restore healthy growth patterns.
A Word From Vitamins For Woman
Growing stronger, longer nails isn’t about luck but strategy. You can drastically improve their strength and length by understanding how nails grow and supporting them with the proper nutrients, habits, and products.
Be consistent with your nail care routine, stay hydrated, and prioritize vitamins like biotin and B12 to accelerate the nail growth timeline. With a bit of patience and the right approach, healthier nails are not just possible; they’re inevitable.
- Yaemsiri S, Hou N, Slining MM, He K. Growth rate of human fingernails and toenails in healthy American young adults. J Eur Acad Dermatol Venereol. 2010 Apr;24(4):420-3.
- Why Nails on Your Fingers and Toes Grow at Different Rates
- Verywell Health: Aging Nails: Natural Changes and Signs of Problems in Adults
- Hochman LG, Scher RK, Meyerson MS. Brittle nails: response to daily biotin supplementation. Cutis. 1993 Apr;51(4):303-5. PMID: 8477615.
- Curtis, L. (2023). What Causes Brittle Nails and How To Strengthen Them.
