Biotin supplements look good, feel good… with Biotin you’ll “B” good to go! This essential nutrient is part of the Vitamin B family, all of which play a vital role in how your body converts food to energy.* Biotin affects the metabolism of carbohydrates, proteins and fats, and how they are made available to the body for work, rest and play.* Plus, Biotin is a great choice when it comes to hair, skin, and nail nutrition, and it’s often found as a key ingredient in shampoos and conditioners.
Biotin Supplement Benefits
Biotin supplements are available in various strengths and also in combination formulas. Benefits of Biotin may vary pending on the individual item. Check product labels for specific item information.
- Supports cellular energy.*
- For healthier, brilliant looking hair.*
- Helps to support healthy skin.*
- Helps support nail health.*
Biotin Potency
Puritan’s Pride sells various strengths of Biotin vitamins. Biotin is available in 5,000mcg, 7,500mcg and 10,000mcg. Biotin 10,000mcg - also known as Ultra Mega Biotin - helps promote skin, hair and nail health, and assists in protein and fat metabolism for energy use.* Biotin 5,000mcg is the lowest potency and supports skin and hair health.*
Biotin Shampoo for Hair
Biotin is most notably known for supporting hair health. Biotin Shampoo is a great way to target your hair with its benefits. Puritan's Pride Biotin Shampoo is an effective cleanser for your scalp, and is carefully formulated with Vitamin E, Panthenol and Lecithin to give your hair healthy body and luxurious shine.
Biotin Research and Reliability
In a clinical trial, eight females received 2.5 mg of Biotin daily for up to 15 months. The trial indicated supplementation with Biotin may support nail health, as measured by changes in nail thickness. Furthermore, in a preliminary study of 44 subjects, subjects were given 2.5 mg of Biotin daily for up to four months. Puritan’s Pride has dedicated itself to providing high quality products at an affordable price for almost 50 years. At Puritan’s Pride you can stock up on your favorite biotin vitamins and supplements.
Shopping Considerations
When choosing the best biotin supplements, we looked at the following indicators of trust: third-party testing for purity and potency, and facilities adhering to CGMPs set by the FDA. Ingredient quality, minimal fillers and additives, and vetting to meet medical and business standards were also prioritized. Consider third-party testing, supplement type (softgel, gummy, liquid), your goals (hair/skin/nails vs general energy), and dietary needs (hypoallergenic or organic options).
Keep in mind that there’s little evidence to support the use of biotin for hair, nail, or skin health in those without deficiency. Consuming a healthy, well-rounded diet will do much more for your hair, skin, and nails than taking a supplement. Biotin supplements can also affect certain lab tests, such as those used to measure thyroid hormones or heart damage, potentially leading to false results. This could lead to the misdiagnosis of serious medical conditions, which could be dangerous and even deadly. As a result, it’s important to talk with a healthcare professional before taking a biotin supplement.
Biotin Dosage and Safety
The daily adequate intake (AI) levels for biotin for adults are as follows: Adults: 30 mcg; Pregnancy: 30 mcg; Breastfeeding: 35 mcg. Most biotin supplements contain significantly higher amounts than the AI level. The supplements on this list provide 1,667% to 33,333% of the DV for biotin. There’s no evidence that high doses are directly harmful. However, high doses of biotin can interfere with lab tests by falsely skewing thyroid hormone levels, vitamin D levels, or other results, which could have a significant impact on your medical care. Be sure to let a healthcare professional know if you’re taking a biotin supplement prior to having lab work done.
There’s limited evidence to support hair or nail health benefits in those without deficiency. Some populations at risk of deficiency may benefit from supplementation, including those with alcohol use disorder, those who are pregnant or breastfeeding, and those with biotinidase deficiency.
Possible Side Effects and How Long It Stays
Biotin doesn’t appear to be linked to notable side effects. Some people report skin rashes or digestive upset, but there’s currently no research on specific biotin side effects. Biotin may interfere with lab testing results, and research suggests that blood biotin levels peak 2 to 4 hours after ingestion and may remain elevated for up to 24 hours. Some recommendations advise stopping biotin 48 hours before bloodwork.
Biotin is an essential vitamin that helps regulate energy metabolism and cellular function. It’s found in foods such as eggs, milk, nuts, seeds, cooked eggs, salmon, avocado, and sweet potatoes. Most people get enough biotin from their diet, but supplements can provide additional biotin for those who need it.
Where to Buy Biotin
Biotin supplements are widely available at major pharmacies, online retailers, health food stores, and department stores. Popular options include Puritan’s Pride and Nature’s Bounty brands, with varying potencies such as 5,000 mcg, 7,500 mcg, and 10,000 mcg. Shampoos and hair care products containing biotin are also sold in drugstores and cosmetics retailers. When shopping, compare third-party testing certificates, CGMP compliance, and brand transparency, and select the form that best fits your routine-softgels, gummies, or liquids.
BIOTIN: The 5 Best Supplements for Hair/Skin/Nails (2026)
Options include biotin pills, tablets, softgels, and gummies in a variety of doses. Most people get enough biotin from the foods they eat, so supplementation is often for those at risk of deficiency or seeking cosmetic benefits. If you’re considering supplementation, consult a healthcare professional and review product labels for dosage and ingredients.