Market Size and Growth Drivers
The global nail care market, which includes nail strengthening serums, was valued at approximately $12.5 billion in 2024 and is projected to grow at a compound annual growth rate of around 5.5% through 2030, according to Grand View Research. Nail strengthening serums represent a fast-growing subcategory driven by consumer demand for at-home treatments that reduce breakage and splitting. The rise of professional-quality home care products has expanded the addressable market for concentrated serums and treatments. Forbes reports continued investment in nail care innovation as brands compete on ingredient efficacy and clinical claims.
Direct-to-consumer brands and social media influence have accelerated adoption of nail strengthening serums, with TikTok and Instagram driving product discovery. Sephora and Ulta Beauty reported strong year-over-year growth in nail treatment categories, with serums and concentrates among the fastest-growing segments. Market analysts note that consumers increasingly seek products with transparent ingredient lists and dermatologist-tested formulations. SEC filings from Estée Lauder Companies detail category performance and R&D spending on nail care innovation.
Key Ingredients and How They Work
Keratin and Protein-Based Formulations
Keratin is the primary structural protein in nails, and many strengthening serums use hydrolyzed keratin to temporarily fill in micro-damage and reduce peeling. Clinical testing by brands such as OPI and CND shows measurable increases in nail hardness and flexibility after 4 to 8 weeks of daily application. Forbes notes that protein-infused treatments now account for a significant share of new product launches.
Biotin, Calcium, and Vitamin E
Biotin, also known as vitamin B7, is frequently included in nail strengthening serums for its role in supporting keratin production. The Mayo Clinic states that biotin supplementation may improve nail thickness in people with brittle nails, though topical application evidence is more limited. Calcium and vitamin E are used to reinforce the nail plate and reduce water loss, with some brands publishing in-vitro data on hydration retention after 24 hours.
Top Brands and Product Rankings
Market Leaders and Consumer Ratings
Consumer Reports and Allure annual rankings consistently place products from OPI, CND, and Essie among the top nail strengthening serums based on ingredient lists, user reviews, and clinical results. OPI Nail Envy Original and CND SolarOil are frequently cited as benchmark products for reducing breakage and improving shine. Forbes highlights OPI and CND as brands that invest heavily in R&D to back their nail treatment claims with data.
Emerging Brands and Direct-to-Consumer Models
Newer brands such as Olive & June, Tenoverten, and Nails.inc have gained market share by offering nail strengthening serums with simplified ingredient lists and subscription models. These brands often publish third-party clinical results and emphasize clean