Rated 4.9
Great product
Stop buying fairy dust from GNC. I've seen 50-year-old men on this look better than guys half their age. No needles. No BS. Just results. I put my name on NOTHING I don't believe in. Period. ISYMFS.
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We mix this in small batches. Today's batch is almost gone:
No‑Risk First Bottle: Not blown away? We’ll refund your first bottle in full within 60 days. Simple as that.
⚡ Stack to Maximize Gains:
Double the drive. Amplify recovery. Carve harder.
EQUI-MASS · Big · Full · Strong
Full, thick muscle that fills your shirts. The work you put in finally shows up as size.*
You hit your calories and never skip a session. The scale stalls, or the gain lands on your waist. EQUI-MASS is built to turn that work into real size, with 400 mg of actives in every serving.*
Here is why ↓
30-day
guarantee
HPLC
lab tested
Brand partners
CT Fletcher
& Lee Priest
Verified EQUI-MASS buyers
You have finished bottles of mass gainers and boosters and looked the same on the last day. Read what three verified EQUI-MASS buyers wrote.
Victor C.
Was very surprised, and stoked, at how well it has worked. Hoping to continue to gain more mass, but satisfied with my progress so far. Getting ready to place another order!
Darryl B.
Noticeable gains and strength. Only product that i have seen gains with!

Mark R.
I’m loving this stuff. My pumps are amazing and people are always asking what I’m using

Photos come from verified buyers. Some reviewers got a discount for adding a photo.
Brand partners
CT Fletcher and Lee Priest are partners of Vintage Muscle. Here is what each one says about the brand.

CT Fletcher
3-time World Bench Press Champion · 3-time World Strict Curl Champion
On Vintage Muscle
“I put my name on NOTHING I don't believe in. Period.”

Lee Priest
IFBB pro at 20 · 5th at the 1997 Mr. Olympia · 2006 Ironman Pro winner
On Vintage Muscle
“I F@#$%&! LOVE THIS STUFF”
The problem
Creatine, protein, and hard training got you this far. After a few years, gains slow down. More food and more sets stop adding size.
01
You add calories week after week, and the scale sits still. Eating more starts to feel like a second job.*
02
When the scale does move, the weight lands on your waist. Your chest and arms look the same.*
03
Heavy days leave you sore for most of the week. You cannot train hard often enough to grow.*
EQUI-MASS is built to take on all three walls at once.*
What is inside
Each 2 mL serving holds 200 mg of each active. Our lab found 420 mg in total. Here is each one and its job in the formula.*
The 1,4-OHP molecule, drawn from its real chemical structure.
Reading the name: The “1,4” marks two double bonds in the first ring. The “17α” marks the hydroxyl group on carbon 17. Both are labeled in the diagram.
200 mg per serving
17β-(1-ketoethyl)-androsta-1,4-dien-3-one, 17α-ol
It is the main active, formulated to support protein synthesis and nitrogen retention for full, dense size.*
Label: 200 mg · Lab test: 212 mg
200 mg per serving
3β-hydroxyandrost-4-en-17-one
It works beside 1,4-OHP, formulated to support strength and a thick, solid look.*
Label: 200 mg · Lab test: 208 mg
HPLC tested · Oct 28, 2025
Batch 251028-001. Both actives tested above the label, at 212 mg and 208 mg. Our chemist ran the test in-house with method SOP VM-106. See the lab report
The timeline
One bottle lasts 4 weeks, so a full cycle takes 2 bottles. Here is what each bottle is built to do. Results vary with your food, training, and sleep.*
Weeks1–4
Your pumps get fuller and last longer. Your lifts start to climb, and big meals get easier to finish. The scale starts to move.*
Kyle B.
Equimass kicked in on day 8 love it feel incredible I recommend to everyone!!
Weeks5–8
Your shirts pull across your chest and arms. Your shoulders look wider in the mirror, and people who have not seen you in a while notice.*
Nick S.
I love it!!! I gained 22 lbs in the last 2 months and have never past 151. I Feel Great and more confident about myself!!

The difference
Food and training build the base, and that job matters. How much of the surplus shows up as muscle is a separate job. That is why so many hardgainers eat more and still look the same.
Bulking alone
Bulking + EQUI-MASS
Want a denser, harder look on top of the size? Pair EQUI-MASS with Uronabol. See the stacks below.
The fit
This is for you if:
Saleem M.
Just saying these supplements work! I have been training for 25 plus years, taking many supplements! Most stuff I felt worked are no longer on market! But Vintage Muscle has changed that! 💯 stuff works

This is not for you if:
About side effects: EQUI-MASS can raise your appetite and add some water weight. Some men get skin breakouts. Run Cycle Support from day one, and get blood work before and after your cycle.
On AutoShip, bottle 2 ships 4 weeks after bottle 1. Change or cancel any time.
The proof
Verified EQUI-MASS buyers, in their own words.
Jack W.
Great product, I feel it the momement it hits my tongue. The pump it gives lasts my entire workout. Great edge for a 66 year old.
Aaron S.
Great product
Joe M.
I have been putting on some serious clean size with this product. I strongly recommend anyone competing or just your everyday person who loves to train. I’m definitely ordering this again. Love it.
Dwight M.
The gains are real the vintage muscle product line is legit stuff depending on your fitness goals you’ll definitely see improvements gotta be consistent though no half assing. it works if you work hit the gym hit your calorie goals hit your protein goals you won’t be disappointed!
Verified buyer photos and words. Some reviewers got a discount for adding a photo. Results vary.*
The protocol
2 mL
a day
4 wks
per bottle
2
bottles per cycle
Take 2 mL a day, with 1 mL in the morning and 1 mL before training. Eat 500 to 750 calories over maintenance, with 1 gram of protein per pound of body weight.
Weeks 1–8
Bottles in this phase
Take EQUI-MASS and Cycle Support every day for 8 weeks. Cycle Support is built to support liver health from day one.*
Weeks 9–12
Bottles in this phase
Stop EQUI-MASS. Take Arimidione and Cycle Support every day for 4 weeks of post-cycle therapy.
Weeks 13–16
Take 4 weeks off. Then you can start your next cycle.
PCT, in plain words
Every kit below includes the full PCT.
Tip: Every bulk adds some water and a little fat with the muscle. To harden up later, run a WIN-TEST cycle after your off weeks.*
Pick your 12-week kit · PCT included
In this kit
Run 8 weeks of EQUI-MASS, then 4 weeks of PCT. It is the cleanest way to see what EQUI-MASS does on its own.*
In this kit
Uronabol is built for a denser, harder look while EQUI-MASS adds size.*
In this kit
The all-in kit for hardgainers. MYO-11 and Uronabol join EQUI-MASS for size and density.*
In this kit
19-NANDRO adds strength support and is built to be joint-friendly. Pick it if your lifts matter most.*
Tanner C.
I love it and I can’t wait to try other products from you guys!
Every stack runs EQUI-MASS for 8 weeks, then 4 weeks of PCT with Arimidione and Cycle Support. Each kit holds all 12 weeks, PCT included. The button adds the kit to your cart and applies code B2G2, 50% off 4 or more bottles. Kits are one-time orders.
Not sure what to pick? Take the 60-second quiz
The 8-week mirror challenge
Your memory of day one fades fast. Take the same three shots at the start, the middle, and the end of your cycle.
Day 1
Shoot your front, side, and back. Use the same mirror, light, and time of day.
Week 4
Take the same three shots in the same spot.
Week 8
Take them one last time. Put all nine photos side by side.
Share them: Post your photos in the Vintage Muscle group on Facebook. You can also keep them on your phone. The photos are for you first. Join the group
You do the work. Give it 8 weeks to show.
You already eat the food and lift the weight. Every week you wait is one more week of the same mirror.
Your 8 weeks start today.
What EQUI-MASS will not do
It is built to help your food and training show up as size.*
30-Day First-Bottle Guarantee
Try your first bottle. Not happy? Email us within 30 days of purchase and send it back. We refund the bottle.
30-day first-bottle guarantee · HPLC lab tested
AutoShip: $65.99 a bottle every 4 weeks, about $2.36 a day. Change or cancel any time.
Questions
PCT stands for post-cycle therapy. It is the 4 weeks right after your cycle, when you stop EQUI-MASS and take Arimidione and Cycle Support.
EQUI-MASS suppresses your natural testosterone while you take it, so every EQUI-MASS cycle needs PCT. Every kit on this page includes it.
Each bottle has 30 servings of 2 mL, enough for 4 weeks with a couple of days to spare. A full 8-week cycle takes 2 bottles.
AutoShip sends a bottle every 4 weeks at $65.99, so two shipments cover one 8-week cycle. You can change or cancel it any time in Manage Subscriptions.
Take 2 mL a day. Take 1 mL in the morning and 1 mL before training.
It tastes bad. Keep water or juice ready as a chaser.
Yes. EQUI-MASS is built for a bulk, and size needs extra food. Aim for 500 to 750 calories over maintenance.
Get about 1 gram of protein per pound of body weight every day.
It can speed up hair loss in men who are prone to it. If your father and grandfather kept their hair, your risk is lower.
If your hair is a top worry, take the 60-second quiz first. It can point you to a better fit.
EQUI-MASS suppresses your natural testosterone while you take it, which is why PCT is required.
Other possible effects are a bigger appetite, some water weight, and skin breakouts. Run Cycle Support from day one.
Talk to the doctor who prescribes your TRT before you start. EQUI-MASS affects your hormone levels, and your doctor needs to know that to read your blood work.
It can. If you are tested for sports, the military, or work, check your testing rules before you start. We cannot promise you will pass.
Age alone is not a reason to sit this out. Jack in the reviews above is 66. Results vary.*
If you have a medical condition or take any medicine, talk to your doctor first.
Fair question. A mass gainer adds calories, and EQUI-MASS is built to help those calories become size.*
The label says 200 mg of each active per serving. Our HPLC test of batch 251028-001 found 212 mg and 208 mg. See the lab report. Your first bottle also has a 30-day money-back guarantee.
Yes. Keep your creatine, protein, and pre-workout. If you take any medicine or have a medical condition, talk to your doctor before you start.
The frame is still there. Now fill it out.
Jared · Founder, Vintage Muscle
Per 2 mL serving: 1,4-OHP 200 mg, 3β-hydroxyandrost-4-en-17-one 200 mg · HPLC lab tested
Some reviewers got a discount for adding a photo. CT Fletcher and Lee Priest are paid brand partners.
Important safety information
*Individual results vary. 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.
We stand behind every formula we make. If you’re not satisfied within 30 days, send it back — we’ll refund you in full. No games. No hassle.
CLAIM NOW
We stand behind every formula we make. If you’re not satisfied within 30 days, send it back — we’ll refund you in full. No games. No hassle.
CLAIM NOW
You’ve tried it all.
Powders. Pills. Pre-workouts. Test boosters. Protein tubs stacked to the ceiling.
Every label screaming “science-backed.” Every ad promising “massive gains.”
And what happened?
Plateaus. False hope. Wasted money. Weak results.
That’s because most of the industry is built on fillers, caffeine, and fairy dust doses. Lies packaged in shiny tubs.
Vintage Muscle is different.
We don’t push hype—we push hardcore precursors designed to actually change your results.
Every formula is pure, potent, and HPLC-tested. No cheap junk. No under-dosing. Just real compounds that fuel size, strength, and recovery.
Don’t take our word for it. Look at the reviews. Thousands of lifters already transformed.
And if you’re still skeptical—we get it. You’ve been lied to too many times.
That’s why we back everything with a 100% money-back guarantee.
If you don’t feel harder, stronger, and bigger in 30 days, you don’t pay. Period.
Now it’s on you to take the leap.
Start your cycle. Document it.
And in a few weeks, you might be the next guy DM’ing us:
“I can’t believe I didn’t start sooner.”
Jared Van Yperen, Founder Vintage Muscle
If Vintage Muscle doesn’t help you get stronger, harder, and more powerful within 30 days of daily use, we don’t want a dime from you.
We’re confident because these formulas work. They’ve already transformed thousands of men.
But here’s the truth — nothing works for everyone. And if it doesn’t work for you, we’ll refund you. No excuses.