Benefits of Hair Skin Nails Capsules
Key Findings
Biotin and silica supplementation has been shown to significantly improve hair fall (reduced to 20.61 ± 14.39 in biotin group and 15.71 ± 10.8 in biotin with silica group), hair growth rate (increased by 0.55 mm/day in biotin and 0.57 mm/day in biotin with silica), nail roughness (reduced to 0.09 ± 0.29 in biotin and 0.06 ± 0.25 in biotin with silica), and skin elasticity (increased to 0.15 ± 0.06 in biotin and 0.17 ± 0.12 in biotin with silica) over 90 days in a randomized, double-blind, placebo-controlled clinical trial involving 97 participants [1].
Micronutrient deficiencies, including those of B vitamins (biotin, folic acid, vitamin B12, niacin, riboflavin, pyridoxine), vitamin C, fat-soluble vitamins (A, E, K), and minerals (zinc, iron, copper, selenium), commonly manifest as cutaneous abnormalities affecting the skin, hair, and nails [2] [3].
While many supplements are marketed for hair, skin, and nail health, evidence for the efficacy and safety of some ingredients, such as PABA, is not well-established [4]. Large-scale randomized controlled trials are often needed to confirm benefits [5].
Introduction
The "Hair Skin Nails" supplement contains a variety of vitamins and minerals, including Folic acid, Iodine, Potassium, Choline, Biotin, Vitamin B5, Calcium, Inositol, Vitamin B3, PABA, Iron, Zinc, Vitamin B12, Manganese, and Copper. These micronutrients are essential for various bodily functions, and their deficiencies can impact the health and appearance of hair, skin, and nails. This report will discuss the potential benefits of these ingredients based on available medical literature.
Main Text
Randomized Controlled Trials and Systematic Reviews
A randomized, double-blind, placebo-controlled clinical study involving 105 participants (97 completing) over 90 days investigated plant-based biotin and a biotin-silica blend. The study found that biotin alone and the biotin-silica blend significantly reduced hair fall (20.61 ± 14.39 and 15.71 ± 10.8, respectively, p < 0.001), increased hair growth rate (0.55 mm/day and 0.57 mm/day, respectively, p < 0.0001), reduced nail roughness (0.09 ± 0.29 and 0.06 ± 0.25, respectively, p < 0.0001), and increased skin elasticity (0.15 ± 0.06 and 0.17 ± 0.12, respectively, p < 0.0001) [1]. Another review suggests that a daily 2.5-mg dose of biotin or a 10-mg dose of silicon (e.g., choline-stabilized orthosilicic acid) can abate brittle nail syndrome in well-nourished patients [6]. However, current evidence is often insufficient to recommend widespread use of biotin or zinc supplements in dermatology due to a lack of large-scale randomized controlled trials [5].
Micronutrient Deficiencies and Cutaneous Manifestations
Micronutrient deficiencies (MNDs) frequently lead to abnormalities in the skin, hair, and nails, which can serve as indicators of underlying nutritional issues [2] [3]. Key micronutrients involved include B vitamins (riboflavin, niacin, pyridoxine, biotin, vitamin B12, folic acid), vitamin C, fat-soluble vitamins (A, E, K), and minerals (zinc, iron, copper, selenium, calcium, manganese) [2] [3] [7]. These micronutrients play crucial roles in cellular turnover, hair follicle development, and immune function [8]. A systematic review and meta-analysis on premature canities (premature hair graying) found significantly lower serum levels of vitamin B12, ferritin, and calcium in affected individuals. While lower iron, copper, and zinc levels were not statistically significant, qualitative analysis indicated their importance in hair melanogenesis [9].
Specific Micronutrients
Biotin, Zinc, Copper, Vitamin C, Niacin: These are among the most common ingredients in hair, skin, and nail supplements, with most having literature-confirmed effects [4].
Zinc and Vitamin B12: A prospective study of 50 patients undergoing laparoscopic sleeve gastrectomy observed hair loss in 56% of patients. Those with hair loss had significantly lower preoperative and postoperative zinc levels (0.61 vs 0.81 mcg/ml and 0.46 vs 0.73 mcg/ml, respectively, p < 0.001) and vitamin B12 levels (243.04 vs 337.41 pg/ml and 261.54 vs 325.68 pg/ml, respectively, p < 0.001) compared to those without hair loss. Postoperative folic acid levels were also lower in patients with hair loss (mean 8 ng/ml, p = 0.039) [10].
Iron: Iron is a major element in the normal hair follicle cycle [8].
PABA: One study noted that PABA, an ingredient in some supplements, has no proven effectiveness for hair, skin, and nails [4].
Conclusions
The available evidence suggests that certain micronutrients, particularly biotin and silica, can offer benefits for hair, skin, and nail health, as demonstrated by a randomized controlled trial showing improvements in hair fall, growth rate, nail roughness, and skin elasticity [1]. Deficiencies in micronutrients like B vitamins (biotin, folic acid, vitamin B12, niacin), vitamin C, and minerals (zinc, iron, copper, calcium) are linked to cutaneous abnormalities and can impact hair, skin, and nail health [2] [3] [9] [10]. However, for many supplements, especially those containing PABA, robust evidence from large-scale randomized controlled trials is still needed to fully establish their safety and efficacy [4] [5].
References:
1) MN Patel et al. The Role of Sesbania grandiflora-Derived Biotin and Bambusa arundinacea-Derived Silica Extracts in Promoting Hair, Skin, and Nail Health: A Randomized, Double-Blind, Placebo-Controlled Clinical Study. Cureus (2025). https://pubmed.ncbi.nlm.nih.gov/40896024/
2) M DiBaise et al. Hair, Nails, and Skin: Differentiating Cutaneous Manifestations of Micronutrient Deficiency. Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition (2019). https://pubmed.ncbi.nlm.nih.gov/31144371/
3) Hamido Fujita et al. Plenary lecture 4: case-based reasoning framework for medical diagnosis for virtual doctor system. International Conference on Artificial Intelligence (2011). http://dl.acm.org/citation.cfm?id=1959489/
4) Joanna Jachimowicz-Rogowska et al. The Most Commonly Used Diet Supplements for Hair, Skin and Nails in the Opinion of Pharmacy Employees from Different Cities in Poland. Engineering Sciences And Technologies (2022). http://dx.doi.org/10.15611/nit.2022.38.04/
5) KG Thompson et al. Dietary supplements in dermatology: A review of the evidence for zinc, biotin, vitamin D, nicotinamide, and Polypodium. Journal of the American Academy of Dermatology (2020). https://pubmed.ncbi.nlm.nih.gov/32360756/
6) N Scheinfeld et al. Vitamins and minerals: their role in nail health and disease. Journal of drugs in dermatology : JDD (2007). https://pubmed.ncbi.nlm.nih.gov/17763607/
7) Labia Arif et al. Role of Micronutrients (Vitamins & Minerals). International Journal of Multidisciplinary Sciences and Arts (2024). https://doi.org/10.47709/ijmdsa.v3i1.3769/
8) HM Almohanna et al. The Role of Vitamins and Minerals in Hair Loss: A Review. Dermatology and therapy (2018). https://pubmed.ncbi.nlm.nih.gov/30547302/
9) Nur Camelia et al. Serum Micronutrient Levels In Premature Canities: A Systematic Review and Meta-analysis. Dermatology Research (2021). http://doi.org/10.33425/2690-537x.1021/
10) G Katsogridaki et al. Hair Loss After Laparoscopic Sleeve Gastrectomy. Obesity surgery (2018). https://pubmed.ncbi.nlm.nih.gov/30062467/