My Lion Results After 3 Months (With Numbers)

So here's the thing about Lion - I didn't even know this peptide existed until last year when I was down a research rabbit hole looking at immune system optimization. I'd already tried bpc 157 for gut issues and was familiar with peptides, but Lion? Never heard of it. Then I stumbled across some Russian research papers (translated, thankfully) and got curious.

I'm 38 now, and after burning out hard in tech at 32, I've become obsessed with tracking everything. So when I decided to try Lion for 3 months, I did what I always do - baseline bloodwork, daily logs, and zero expectations. Because let's be real, most supplements promise the moon and deliver maybe a nice sunset if you squint.

Here's exactly what happened over 90 days, with actual numbers from my tracking.

What Is Lion and Why Did I Even Try It?

Lion is a short peptide derived from thymus gland proteins. It's basically a thymic peptide that's supposed to help regulate immune function. The research mostly comes from Russia and Eastern Europe, which is why it's not super well-known in Western biohacking circles.

I started researching it because I was tired of getting sick. Like, I'd train hard, eat clean, sleep 7-8 hours, and still catch whatever cold was going around. My immune system was technically "normal" on bloodwork, but clearly not optimal. After reading like 30 papers on thymic peptides, I figured it was worth a shot.

The mechanism is pretty straightforward: Lion helps modulate T-cell function and potentially improves immune system coordination. It's not a stimulant - it's more like a regulator. Think of it as tuning your immune system rather than boosting it with some temporary hack.

My Baseline Before Starting Lion

I got comprehensive bloodwork done in early March 2024 before starting. Here's what mattered:

I also tracked that I'd had two colds in the previous 6 months, each lasting about 5-7 days. My recovery from hard workouts was okay but not great - usually needed 2 full rest days after heavy deadlift sessions.

The Protocol I Followed

Based on the research I found, most studies used doses between 5-10mg administered subcutaneously or intramuscularly. I'm not a medical professional, so I consulted with my doctor before starting (seriously, do this - don't be stupid with peptides).

Here's what I did:

I also kept everything else constant - same diet (high protein, moderate carb), same training schedule (lifting 4x/week, running 2x/week), same sleep routine. I didn't want variables messing up my data.

Week 1-3: Absolutely Nothing

Let's be honest - the first three weeks, I felt exactly zero difference. No energy boost, no magical immune shield, nothing. I almost quit because I thought I'd wasted my money again. This is typical with peptides though - they're not like caffeine where you feel it in 30 minutes.

I kept a daily log and the only thing I noted was that injection site reactions were minimal. Just a tiny red spot that disappeared within hours. Way less irritation than when I was doing igf 1 lr3 experiments last year.

Week 4-6: Maybe Something?

Around week 5, I noticed I was recovering faster from workouts. Like, I'd do heavy squats on Monday and normally my legs would be trashed until Thursday. But I was feeling ready to train again by Wednesday. Subtle, but consistent.

Also, my girlfriend got a nasty cold in week 6. We live together, share everything, and normally I'd catch whatever she had within 48 hours. I didn't get sick. Could've been luck, but it made me pay attention.

No changes in sleep quality according to my Oura ring data. Still averaging 7.5 hours with 1.5 hours REM and 1.2 hours deep sleep - same as baseline.

Week 7-12: The Good Stuff

This is where it got interesting. I traveled twice during this period - once to a conference (germ factory) and once to visit family. Normally travel destroys me because of the stress, sleep disruption, and exposure to new germs. I didn't get sick either time.

My training logs showed consistently faster recovery. I could handle more volume without feeling run down. I actually increased my training frequency from 4 to 5 days per week in week 10 and maintained it without issues.

The biggest marker though was my follow-up bloodwork at the end of week 12:

These aren't dramatic changes, but they're measurable and in the right direction. My immune markers moved from "technically normal but meh" to "solidly mid-range."

What Didn't Change

Let's talk about what Lion didn't do, because that's important too:

Lion is very specific in what it does. It's not a miracle cure-all, and anyone selling it as such is full of crap.

Cost Breakdown

Let's talk money because that matters. I sourced my Lion from a peptide research supplier (not naming them because regulations are weird, but do your homework on purity testing).

That's about $60 per month, or $2 per day. Not cheap, but not insane either. Compare that to the $400 I wasted on some sketchy "immune boost" supplement stack last year that did absolutely nothing.

Side Effects and Safety Notes

I experienced zero side effects over 3 months. No injection site issues beyond minor redness, no systemic reactions, no weird symptoms. My bloodwork showed no concerning changes in liver enzymes, kidney function, or anything else.

That said - and I cannot stress this enough - I'm not a medical professional. This is just my personal experience. Before you try any peptide, including Lion, you need to:

Also worth noting: Lion research is mostly from Russian and Eastern European studies. The quality varies, and there aren't huge Western clinical trials backing this up. You're operating in a gray area here.

Would I Do It Again?

Honestly? Yeah, probably. The immune support seems real based on my experience and bloodwork changes. Going 3 months without getting sick when I normally catch 2-3 colds is significant for me.

However, I'm taking a break now. I don't think peptides like Lion are something you should run continuously forever. I'm planning to cycle it - maybe 3 months on, 3 months off, and see how that goes. My theory is that my immune system needed a tune-up, and now it's running better. We'll see if the benefits persist or if I need to go back on.

I'm also curious to experiment with combining it with vilon, another thymic peptide, but that's a future experiment. One variable at a time.

Frequently Asked Questions

How long does it take for Lion to start working?

Based on my experience, I started noticing subtle improvements around week 5-6. The bloodwork changes were clear at 12 weeks. This isn't something that works overnight - it's a gradual immune system modulation, not a quick fix.

Can I take Lion with other supplements or peptides?

I was taking my regular stack (vitamin D, magnesium, creatine, omega-3s) alongside Lion with no issues. I've also previously used bpc 157 and other peptides separately without problems. That said, always consult your doctor before combining compounds - everyone's different.

What's the difference between Lion and other immune peptides?

Lion is specifically a thymic peptide that modulates T-cell function. It's different from general "immune boosters" because it's working on immune system regulation rather than just stimulating it. It's more subtle and longer-term compared to something like high-dose vitamin C or zinc when you're already sick.

Is Lion legal to purchase and use?

This is complicated and depends on your country. In the US, peptides exist in a regulatory gray area - they're often sold "for research purposes only." They're not FDA-approved for human use outside clinical trials. I'm sharing my personal experience, not legal advice. Do your homework on local regulations.

Final Thoughts on Lion

After 3 months and $180, I can say Lion delivered measurable results for immune support. My white blood cell count improved, inflammation markers dropped, and I didn't get sick once during a period where I normally would've caught at least one cold.

Is it a miracle? No. Is it worth trying if you struggle with frequent infections or suboptimal immune markers? Maybe, but talk to your doctor first. This is what worked for me at 38 years old with my specific health situation. Your results may vary - and that's not just a disclaimer, it's reality.

The biggest lesson I've learned from 6 years of biohacking experiments is that consistency and tracking matter more than any single compound. Lion helped, but so did the 7-8 hours of sleep, the high-protein diet, the regular training, and the stress management. It's all connected.

If you're considering Lion, do your research, get bloodwork, track your data, and be patient. And seriously, find a doctor who won't just shut you down immediately when you mention peptides. They're out there, and having medical supervision makes this whole experiment much safer and more effective.