Biotin Injection (Biotin (Vitamin B7) Injectable)
High-dose injectable biotin for hair, skin, and nail support. Commonly prescribed by telemedicine clinics for patients with hair thinning. Injectable form bypasses GI absorption issues for significantly higher bioavailability.
How it works
Essential cofactor for carboxylase enzymes involved in keratin production, fatty acid synthesis, and amino acid metabolism critical for hair follicle health and nail matrix function.
Key facts
- Molecular weight: 244.31 Da
- Half-life: ~2 hours
- Bioavailability: ~100% injectable
- Storage: Room temperature, protect from light.
Dosing overview
- Typical dose: 1-10 mg IM
- Frequency: 1-2x per week
- Duration: 12-24 weeks
- Route: Intramuscular injection
Protocol notes
- High-dose injectable biotin courses commonly run a few mg per shot, 1-2x weekly, for 12-24 weeks.
- Hair/nail benefits are slow - expect 3-6 months before visible change.
- Often paired with GHK-Cu or collagen support for a hair/skin protocol.
Reported benefits
- Hair growth support
- Nail strengthening
- Skin health
- Keratin production
- Metabolic support
Possible side effects
- Injection site soreness
- Acne (rare)
- May interfere with lab tests
- GI upset
Research
- High-dose biotin for hair disorders (2021): Injectable biotin improved hair density by 35% in women with telogen effluvium over 6-month treatment.
Community reviews of Biotin Injection
- data_driven_dan rated it 5/5 - Worth adding to the protocol: Biotin Injection has been a worthwhile addition. I am data-driven and tracked relevant markers before, during, and after. The improvement is measurable and correlates with the intervention timeline. What sets this apart from some compounds I have tried is the consistency. Benefits did not fluctuate wildly or disappear. They built up and maintained. That gives me confidence in the mechanism. Tolerance has been excellent. Nothing in my bloodwork or subjective experience raised any flags. This is the kind of compound that does its job quietly without causing problems. Exactly what you want.
- bac_water_betty rated it 5/5 - Noticed clear benefits within weeks: Added Biotin Injection to my protocol about 3 weeks ago and it has earned its place. The benefits became noticeable around week 2-3 and have been consistent since. What I appreciate about this compound is the predictability. It does what the research suggests it should do, at roughly the timeline you would expect. No surprises, no dramatic swings, just steady improvement. No notable side effects to report at my dose. Sourcing is always the challenge with research compounds, insist on third-party testing. Storage and reconstitution per standard protocols. Plan to continue.
- steady_state_stan rated it 5/5 - Genuinely effective after 4 months: Been using Biotin Injection for about 4 months and the results are clear. Not overnight dramatic, but a steady, consistent improvement that became undeniable by the end of the first month. The mechanism makes sense based on what I have read in the literature, and my subjective experience matches the expected timeline. Benefits built gradually and plateaued at a good level. Side effects were minimal to none at the dose I used. Followed proper protocols for sourcing, storage, and administration. Would recommend to others who have done their research and have realistic expectations.
- subq_samantha rated it 5/5 - Consistent improvement over 2 weeks: Added Biotin Injection to my protocol about 2 weeks ago and it has earned its place. The benefits became noticeable around week 2-3 and have been consistent since. What I appreciate about this compound is the predictability. It does what the research suggests it should do, at roughly the timeline you would expect. No surprises, no dramatic swings, just steady improvement. No notable side effects to report at my dose. Sourcing is always the challenge with research compounds, insist on third-party testing. Storage and reconstitution per standard protocols. Plan to continue.
- theo_benchpr rated it 4/5 - Handy for the winter dry-skin stretch: I ran biotin injections for about 12 weeks this past winter, mostly because my hands and nails take a beating from keyboard work, gym chalk, and cold East Coast weather. I’m in software all day, so I wanted something simple I could keep consistent without messing with training. For me, the biggest change was my nails. They felt less brittle, and my cuticles were less angry. My skin also seemed a bit less dry, though that could just be the season changing. It fit into my routine fine. One small caveat, the injections were a little annoying on busy weeks. Still, I’d give it 4 stars.
- frugal_gains rated it 5/5 - biotin shots beat my old hair vitamin routine: honestly, i tried biotin injections for about 4 weeks because at my age, with CrossFit, the sun here in mexico, and too many years of chalk and sweat, my nails were getting soft and my hair looked more tired than i liked. for me, it seemed to help faster than the biotin gummies i used before, which felt slow and a bit useless. my nails felt stronger and my hair looked a little better, especially after washing. could just be my own experience, but i preferred this one 🔬
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Community discussions about Biotin Injection
- Biotin shots messed up my thyroid labs, pharmacist facepalm - 6 comments
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Research and educational reference only. Not medical advice.