Barely a week goes by in my practice without someone asking me about biotin. And honestly? I get it. It's everywhere: on supplement shelves, in gummy vitamins, in your shampoo, and in your protein bars.
Many of my patients ask about hair supplements containing 3,000 mcg of biotin. And I want to be direct with you: even 3,000 mcg is still above the FDA's safe threshold. The FDA has flagged that biotin intake over 1,000 mcg can cause real, noticeable side effects. So pay attention to the amount of biotin in your supplement.
I don't say this to alarm you. I say it because this is exactly the kind of thing I wish more people knew before choosing a supplement.
What is biotin, and why is it so heavily promoted?
Biotin is B7 (also sometimes known as Vitamin H), a water soluble B vitamin your body uses to metabolize fats, carbohydrates, and proteins. It plays a role in how your body builds and maintains hair, skin, and nails. So the basic logic behind supplementing with it isn't wrong.
The problem is what the supplement industry did with that logic.
Because biotin is water soluble, many brands assumed that excess would simply be flushed out, so they kept raising the dose. Higher number, more compelling marketing. But the body doesn't store it.
How many people are actually biotin deficient?
Biotin deficiency is uncommon in healthy adults who eat a reasonably varied diet. Your gut bacteria actually produce some biotin on their own, and it naturally shows up in foods you're probably already eating: eggs, salmon, almonds, sweet potatoes, avocados.
Here's the thing worth sitting with: if you're not actually deficient, taking massive doses of biotin doesn't give you better hair results. You can't deposit extra into a hair savings account. Your body will try to excrete what it doesn't need, but not without some potential friction along the way.
High Biotin Supplements Can Cause Breakouts and Stomach Issues
If you've been taking a high dose biotin supplement for hair loss and you're breaking out, dealing with stomach aches, digestive issues, or bloating, that's worth paying attention to. Those aren't minor or rare side effects. They're your body telling you something is off.
High Doses of Biotin Can Affect Lab Results
I want to spend a moment on this because it genuinely concerns me as a physician, and it doesn't get nearly enough attention in the consumer supplement space.
High dose biotin can interfere with certain blood tests. Many lab immunoassays, including those used to measure thyroid hormones, cardiac markers like troponin, and certain hormone panels, use biotin based technology in the testing process itself. When there's excess biotin in your system, it can produce falsely elevated or falsely low results. We have seen cases where high biotin intake contributed to a missed or delayed cardiac diagnosis.
If you are taking a high dose biotin supplement and go in for routine bloodwork, your results may not accurately reflect what's actually happening in your body. That's a real problem.
“My firsthand experience with Wellbel gave me the confidence to recommend it to my patients, and the results I've seen in my practice have only reinforced it.”
Why I recommend Wellbel and why I take it myself
I'm careful about supplement recommendations. I don't make them lightly, and I don't make them often. I've been taking Wellbel myself for a couple of years now. My hair texture is softer and shinier, I have more fullness, and overall my hair feels genuinely healthier. That firsthand experience gave me the confidence to recommend it to my patients, and the results I've seen in my practice have only reinforced it.
Wellbel was formulated by Dr. Dan Yadegar, a cardiologist with advanced fellowships in integrative and functional medicine. He didn't approach this as a beauty product. He approached it as a physician who understood that what goes into a supplement has downstream effects throughout the body, including on the lab results we rely on to keep people healthy.
The decision to keep biotin at 500 mcg wasn't a compromise. It was a clinical choice made by someone who understood the full picture. What also sets Wellbel apart is how clean and intentional the ingredient list is. It's short. Everything in the formula is there for a reason. It's vegan, gluten free, and free of harmful fillers and unnecessary additives. That matters to me, and it should matter to you.
One ingredient I want to call out specifically: Betaine HCl. Most hair supplements don't include this, and I think that's a missed opportunity. Betaine HCl supports stomach acid production, which helps your body actually break down and absorb the proteins and nutrients it needs for healthy hair and nails. You can take the most beautifully formulated supplement in the world, but if your digestion isn't equipped to absorb it properly, you're not getting the full benefit. That's functional medicine thinking at work, and it's exactly the kind of detail that tells you this formula was built by a physician.
Rather than loading the formula with mega dose biotin to make the label look impressive, Wellbel pairs a clinically considered 500 mcg biotin with saw palmetto, MSM, horsetail, stinging nettle, selenium, folate, and vitamins A, B12, and D3, each one selected to support hair health from a systems perspective.(can take out a few of these)?
What I actually tell my patients
For the patients who ask me what I'd recommend for hair health support, I tell them to look for something formulated by a physician who understands the whole body. Something clean, with a short ingredient list you can actually read and understand. Something where the dosing reflects clinical thinking, not marketing.
That's Wellbel. And it's what I take every day.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Results may vary.
