By Rowan
Nail ridges are a common concern that many people notice as vertical or horizontal lines running across the nails. While they are often harmless, ridges can sometimes signal nutrient deficiencies, aging, or underlying health conditions. For some, they are purely cosmetic, but for others, nail ridges can be accompanied by brittle or weak nails, which may affect confidence and daily activities.
Alongside good nail care and a balanced diet, natural supplements can help strengthen nails from within. Certain nutrients are especially important for keratin production, nail growth, and overall nail health, which may reduce the appearance of ridges over time.
Here are two evidence-based supplements that may help with nail ridges.
Biotin
Biotin, also known as vitamin B7, is one of the most well-known nutrients for nail health. It supports keratin production, which is the main protein that makes up nails. Supplementing with biotin has been shown to improve nail thickness, reduce brittleness, and smooth ridges.
- Mechanism of action: Strengthens nails by boosting keratin production and cell growth
- Dosage or usage tip: 2,500–5,000 mcg daily, often available in capsule or gummy form
- Buy Biotin here
Collagen Peptides
Collagen is the most abundant protein in the body and plays a key role in nail structure and strength. Studies suggest that collagen supplementation can improve nail growth, reduce breakage, and decrease visible ridges. By supporting overall skin and connective tissue health, collagen also benefits hair and skin alongside nails.
- Mechanism of action: Improves nail structure by supporting collagen and connective tissue
- Dosage or usage tip: 5–10 grams daily, often taken as a powder mixed into water, smoothies, or coffee
- Buy Collagen Peptides here
Summary
Nail ridges may be a common part of aging or a sign of nutrient imbalance, but targeted supplements can help strengthen and smooth nails. Biotin supports keratin production for stronger, healthier nails, while collagen peptides provide structural support and reduce brittleness. Together, they may improve nail appearance and resilience over time.
Always consult with a healthcare professional before starting new supplements, especially if nail ridges are sudden, severe, or accompanied by other health changes, as they may indicate an underlying condition.
Medical Disclaimer: This article is for informational purposes only and does not constitute medical advice.