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The Science of Nail Health: What You Need to Know

The Science of Nail Health: What You Need to Know

The Science of Nail Health: What You Need to Know

Close-up of clean, natural fingernails with a nude polish, showcasing healthy and well-groomed hands against a neutral background.

Nails are more than just a canvas for pretty polish—they’re a reflection of your body’s overall health. Whether you’re into minimalist manis or elaborate nail art, understanding the science behind nail health can help you keep your natural nails strong, smooth, and ready for any design. From how your nails grow to what they’re trying to tell you when they peel or break, here’s everything you need to know about taking care of your nails from the inside out.

What Are Nails Made Of?

Labeled diagram of fingernail anatomy showing the nail plate, cuticle, matrix, lunula, and nail bed on a close-up finger.

Let’s start with the basics: your nails are made of keratin, a tough, fibrous protein also found in your hair and the outer layer of your skin. Each nail grows from a structure called the matrix, which lies beneath the cuticle. This is where new cells form, harden, and push older cells out to create the visible nail plate.

Key Nail Components:

  • Nail Plate: The hard part you see and paint.

  • Nail Bed: The skin beneath the plate that supplies nutrients.

  • Matrix: The root of the nail, responsible for growth.

  • Cuticle: A protective barrier that guards the matrix.

  • Lunula: The visible white crescent at the base of your nail (not always noticeable on every finger).

How Do Nails Grow?

Nails grow slowly—on average, fingernails grow about 3 millimeters per month. Factors like age, genetics, nutrition, and overall health can affect the speed and quality of nail growth. Your dominant hand’s nails may even grow slightly faster!

Faster growth is typically seen in:

  • Warmer climates (thanks to increased blood flow)

  • Younger people

  • Nails that experience regular, gentle use (like typing)

Common Nail Health Concerns

Visual guide showing common nail problems including peeling, brittle, yellowing nails, ridges, dents, and white spots.

Our nails go through a lot—exposure to water, chemicals, nail tools, and polish removers can take a toll. Here are some of the most common issues and what they might mean.

1. Peeling or Flaking Nails

Often caused by dehydration, frequent polish changes, or harsh removers. It can also signal a lack of biotin or keratin production.

2. Brittle Nails

Dry, thin nails that crack easily are usually a sign of overexposure to water, soaps, or even cold weather.

3. Yellowing Nails

Can be caused by dark nail polish, smoking, or fungal infections. If persistent, it may require medical attention.

4. Ridges or Dents

Vertical ridges are often normal with age. However, deep horizontal lines (Beau’s lines) may indicate a past illness or trauma.

5. White Spots

Usually from minor trauma to the nail or a temporary zinc deficiency—not necessarily a sign of calcium shortage, as commonly believed.

How to Improve Nail Health Naturally

Illustration highlighting nutrients for nail health: biotin, protein, iron, zinc, and omega-3s with food sources like eggs, salmon, and spinach.

Healthy nails don’t happen overnight, but the right habits can help you grow longer, stronger nails over time. Here’s what the experts recommend:

Nutrition for Nail Health

  • Biotin: Helps strengthen nails and improve growth.

  • Protein: Keratin is a protein, so a balanced diet supports production.

  • Iron, Zinc, and Omega-3s: Prevent brittleness and dryness.

Daily Nail Care Habits

  • Moisturize cuticles and nails daily with nourishing oils or hand creams.

  • Avoid biting or picking—this damages the nail matrix and can lead to infection.

  • Limit exposure to water and harsh chemicals. Wear gloves when doing chores.

  • File gently in one direction to prevent splitting.

Can Gel Nail Stickers Affect Nail Health?

Illustration of gel nail sticker benefits, highlighting allergy-free, non-damaging, and hydration-friendly features for healthy nails.

When used correctly, gel nail stickers like those from EyeCandys are a safe and healthy way to wear nail art—especially compared to acrylics or gels that require harsh removal methods. Our stickers are:

  • Allergy and Odor-Free: No acrylate glues or strong chemical smells.

  • Non-Damaging: No scraping, soaking, or filing needed to remove.

  • Hydration Friendly: Stickers allow nails to breathe and grow underneath.

That means you can enjoy stylish nails without sacrificing your natural nail health.

When to See a Professional

While most nail changes are harmless, sometimes your nails can be a signal that something deeper is going on. You should consult a doctor or dermatologist if you notice:

  • Persistent discoloration or thickening

  • Pain or swelling around the nail

  • Frequent nail detachment

  • Unexplained changes in shape or texture

Final Thoughts: Healthy Nails Start with Smart Habits

Beautiful nails begin with a solid foundation. By understanding the science behind nail growth and practicing good nail care habits, you can maintain strong, healthy nails that are ready for your next EyeCandys nail art moment.

Whether you prefer bold designs or subtle elegance, healthy nails are the key to long-lasting, flawless manicures. Explore EyeCandys Gel Nail Stickers for a gentle, stylish way to enjoy nail art while keeping your natural nails happy and healthy.


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Contributor

Hayley Fung

Hayley Fung

Hayley Fung is a content creator at EyeCandys, passionate about bringing ideas to life through storytelling, beauty, and social media. Her day-to-day includes crafting content for new product launches, keeping...

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The information in this post and all EyeCandys blog content is intended for informational and marketing purposes only and should not be taken as medical advice. EyeCandys does not offer professional healthcare advice or practice medicine, optometry, or any other healthcare profession. Always consult with your ophthalmologist, optometrist or a qualified healthcare provider for any medical advice, diagnosis, treatment, or questions regarding a medical condition.

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