Does Biotin Help Hair Growth? A Deep Dive Into the Facts

You might be familiar with biotin as a dietary supplement for supporting healthy hair. But sometimes it can be difficult to sort out what biotin actually does from what you might see claimed online. We’re here to help.^†

In this blog, we’ll explore the science behind biotin’s role in supporting hair health as you age. By educating yourself, you can evaluate biotin benefits and decide if adding a biotin supplement to your hair health routine might be right for you. Like many things, hair changes as we age, and finding ways to support our hair can be a beneficial step in our unique aging journeys. Read on to learn more about biotin and hair health.^†

What Is Biotin and Why Does It Matter for Hair Health?

You may know biotin from a supplement label or a nutrition facts box, but what is biotin really? Biotin is one of the essential B vitamins, vitamin B7, to be exact. Our body cannot produce biotin, so we need to get it from our diet. Because biotin is a water-soluble vitamin, our body does not store it, so we need to provide a regular source to obtain its benefits.

Like all B vitamins, biotin plays a key role in cellular energy metabolism, helping to convert the food we eat into cellular energy. More to the point of this article; biotin helps support healthy hair as you age.^†

Can Biotin Help Hair Growth? Exploring the Facts

You may have questions like "can biotin help my hair growth?" and "how much biotin do I need for hair growth?" Most importantly, biotin is a vital nutrient for supporting your overall hair health. Next, we’ll explore what that means.^†

Supporting vs. Stimulating Hair Growth

Does biotin help hair growth? The first thing to understand when discussing biotin and hair is the difference between supporting hair health and how to stimulate hair growth. Hair growth measures the pace and length of your hair: the hair growth cycle is largely determined by factors such as genetics, age, and certain hormones. Hair health can be supported at any time, regardless of hair growth, and it depends on nutrition, hydration, and hair care.

What vitamins help hair grow? While biotin may not make your hair grow faster, it is an important aspect of caring for your hair's health. Including sources of biotin and other important nutrients in your diet can help support your hair's health.^†

Signs You May Benefit from Biotin

Biotin, like all essential nutrients, is best acquired from dietary sources. Biotin rich food like eggs, salmon, beef liver, and sweet potatoes can all provide a source of this essential vitamin in your diet. The adequate daily intake of biotin for adults 19 and up is 30 mcg, increasing to 35 mcg for women who are lactating.^[1] While biotin deficiency is rare in the US, it can affect hair health.^[2]

If you find that your diet does not include many of these biotin food sources, you might benefit from a biotin supplement to ensure you get a regular dose of this essential hair health nutrient.

How to Incorporate Biotin Into Your Routine

If you’re looking to include biotin in your day-to-day life, how do you find it? Look for biotin foods in your diet and consider biotin supplementation.

Dietary Sources of Biotin

Dietary sources of biotin include eggs, nuts, whole grains, and organ meats. Favoring whole grains instead of refined grain products not only provides you with a regular source of biotin, but whole grains tend to be more nutrient-dense generally, providing support for many other essential nutrients.

Nuts are an easy way to include biotin in your diet. Try sprinkling roasted almonds on your next salad to add a tasty, crunchy, nutrient-rich ingredient. Consult with your doctor or a registered dietitian to help you put together a balanced diet, including regular sources of biotin and other nutrient-dense foods.

Biotin Supplements for Hair Support

Biotin supports healthy hair, and taking a biotin supplement can provide you with a daily, regular source of biotin to help bridge any possible nutrient gaps. Nature Made biotin dietary supplements like our Maximum Strength Biotin Softgels are scientific formulations made with high-quality ingredients to support healthy hair as you age. Biotin supplements support hair health from within, augmenting your existing hair care routine.^†

Biotin is also considered an essential skin and nail nutrient, which is why it is included in our Hair, Skin & Nails Supplements. Our Hair-Skin-Nails^‡ Softgels provide biotin to support healthy hair, skin and nails plus essential skin health nutrients such as vitamin A, vitamin C, zinc and copper.

If you prefer your support in a gummy form, Nature Made Hair-Skin-Nails^‡ Gummies support healthy hair, skin and nails with 2500 mcg of biotin in two daily gummies.^†

So, while Biotin may not stimulate healthy hair growth, it does support overall hair health. If you’re looking for more targeted hair health benefits, check out Nature Made's Hair Growth Softgels which include the clinically studied ingredient Lustriva®. A study of Lustriva® in healthy women showed that the ingredient supported thicker, fuller existing hair in 12 weeks. These softgels also include biotin to support healthy hair, along with vitamin A and vitamin C to provide antioxidant support.^†

Common Questions About Biotin for Hair

Can everyone benefit from Biotin supplements?

Talk to your doctor or a trusted healthcare professional about biotin supplementation and get personalized advice before adding a supplement to your daily routine. Nature Made Biotin Supplements are formulated to supplement biotin intake for anyone looking to support their hair, skin, and nails.^†

How much Biotin do you need to support healthy hair?

The adequate intake for biotin is 30 mcg/day for adults 19 and older, increasing to 35 mcg/day during lactation.^[1] Providing your body with adequate biotin through dietary sources or supplements supports hair health from within.^†

Are there side effects to taking Biotin supplements?

Because biotin is a water‑soluble vitamin, your body will clear any excess through your urine.^[1] However, high doses of biotin can interfere with some lab test results. If you are taking medication or planning to undergo lab testing, consult your physician before using a biotin supplement.

The Bottom Line: Does Biotin Help Hair Growth?

Biotin is a key nutrient that supports hair health and is worth considering as part of a well-rounded hair care routine. Hydrating, eating a balanced diet filled with nutrient-rich foods, using gentle products on your hair, and avoiding heat damage from harsh tools all contribute to hair health.^†

Supporting your hair from within with a dietary or supplemental source of biotin can help maintain healthy hair as you age. Explore our articles on subjects like biotin, collagen, and hair growth to help make educated choices in your daily supplement routine. Support your hair health journey—shop our Hair Growth Lustriva® Softgels with biotin today!^†

References:

1. National Institute of Health. Office of Dietary Supplements - Biotin. Nih.gov. Published January 10, 2022. Accessed December 22, 2025. https://ods.od.nih.gov/factsheets/Biotin-HealthProfessional/
2. Cervantes A, Daley SF. Biotin Deficiency. [Updated 2025 Sep 14]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan. Accessed December 22, 2025. Available from: https://www.ncbi.nlm.nih.gov/books/NBK547751/

‡Supports healthy hair, skin & nails†