Last reviewed: May 12, 2026 Last updated: May 12, 2026

Written by: Jay Hastings , CEO of PlexusDx

Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations. He has more than 20 years of experience across healthcare innovation, genomics, laboratory operations, healthcare investing, and strategic finance. His work has included scaling healthcare startups, leading CLIA lab integrations, and helping expand consumer access to precision health tools.

Medically reviewed by: Jayden Lee, PharmD, EMBA

Jayden Lee, PharmD, EMBA, is the PlexusDx Medical Science Liaison with a PharmD and MBA specializing in pharmacogenomics and clinical product development, with a proven ability to bridge the gap between genomic research and practical patient outcomes. Dr. Lee has more than 10 years of professional experience in clinical pharmacy, academia, and research.

Biotin: The Essential Vitamin for Skin, Hair, and Overall Health

Biotin or vitamin B7 serves as an essential B vitamin for skin health and hair maintenance and helps the body break down fats and carbohydrates. This nutrient promotes healthy hair growth as well as strong nails and skin vitality. Biotin deficiency remains uncommon but untreated cases can result in multiple health complications. People experience nerve problems, hair loss, skin rash, Candida infection, and muscle pain more often due to inadequately low biotin levels than from outright deficiency. Smokers along with heavy alcohol consumers and pregnant women together with those who suffer from inflammatory bowel disease (IBD) or liver disease face an elevated risk of developing biotin deficiency. Biotin is abundant in eggs as well as animal products like meat and fish including beef liver and salmon and pork together with sunflower seeds sweet potatoes and almonds. Experts suggest adults receive a daily intake of 30 micrograms of biotin. People who require more biotin should consider taking supplements because low biotin symptoms typically resolve rapidly when supplementation begins. The gene BTD plays a key role in biotin levels by producing the enzyme biotinidase. The enzyme functions to extract biotin from food proteins and to restore it from proteins found in our bodies. The rs13078881-C BTD variant might decrease enzyme activity by as much as 50% which suggests that people with this variant need to consume more biotin through their diet to meet their body's requirements. This genetic variant manifests meaningful effects only when it occurs with rare variants rs71627145-G and rs34885143-A. People with one copy of these genetic variants need more biotin but will not develop biotinidase deficiency. Dietary habits play a critical role in altering the demand for biotin in the body. It is vital to comprehend biotin's significance for maintaining general health. By adding biotin-rich foods to your meals and using supplements when needed you can sustain proper biotin levels and promote your well-being. By exploring Precision Health & Wellness tests from PlexusDx you can take a proactive approach towards your health that can be accessed through PlexusDx.com as well as Amazon and Walmart. Maintain your knowledge and health status while placing your well-being as a top priority.

Keywords: The health benefits of vitamin B7 biotin require avoiding deficiencies through diet adjustments and biotinidase understanding alongside supplementation strategies which can be further supported by Precision Health & Wellness tests from PlexusDx.

Medical and Editorial Standards

Medical review process: This article was reviewed for medical accuracy, scientific clarity, evidence alignment, and appropriate discussion of genetics, medications, supplements, biomarkers, and health-related claims.

Sources and evidence: PlexusDx educational content is developed using peer-reviewed research, clinical literature, reputable medical references, and, where applicable, public health or regulatory guidance. References are included at the end of the article when scientific, medical, or health-related claims are discussed.

Commercial transparency: PlexusDx offers genetic testing, blood biomarker testing, personalized supplement recommendations, and related precision wellness services. Product mentions are intended to help readers understand available options and should not be interpreted as medical advice.

Important disclaimer: PlexusDx educational content is for informational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about medications, supplements, genetic testing, lab testing, or health-related care.

Real prescribers. Published prices. No surprises.

Licensed providers in all 50 states. Online intake. No insurance, no membership required.

Start My Intake

~60 seconds · $0 charged until your provider approves