More Food. More Sets. Same Shirt Size.

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For guys who eat big and stay the same

More food. More sets.
Same shirt 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 size.* Every cycle ends with 4 weeks of PCT, and the plan is on this page.

More food. More sets. Same shirt size. An Equi-Mass bottle next to meal-prep containers.
Show me Equi-Mass

Buy 2, get 2 free. Code B2G2 is applied for you. 30-day first-bottle guarantee.

270,000+ bottles sold13,000+ reviewsHPLC lab tested30-day first-bottle guaranteeShips from Utah

By Jared Van Yperen, founder · Updated October 2026 · 12 min read

Short version: After a few years, more food and more sets stop adding size. Equi-Mass has two named actives at 200 mg each in every 2 mL serving. Our lab found 420 mg in total. It is formulated to support protein synthesis and full, dense size.* It suppresses your natural testosterone, so every 8-week cycle ends with 4 weeks of PCT.

270,000+

Vintage Muscle bottles sold, across every product we make.

There is one thing your mass gainer never had. We will get to it. Keep reading.

A note from our founder

I take what we sell.

I started Vintage Muscle six years ago because the supplement aisle was full of dust. I still test every product on myself first. That clip is me, taking my dose. Yes, it tastes that bad.

This page answers one question: why do you eat like it is your job and still look the same?

Jared

Why you are here

You eat like it’s your job. The mirror didn’t get the memo.

Six meals. Shakes between meals. You never miss a session.

And the scale sits still. Or it moves, and the gain lands on your waist while your chest and arms stay the same.

Heavy days leave you sore till Thursday. You can’t train hard often enough to grow.

You did the work. You hit a wall that more food can’t break.*

3 reasons creatine and protein can’t get you past your plateau

Why your stack stopped working.

The mass gainer tub

Calories in a bag. You already eat enough. More calories alone can land on your waist.*

Creatine

Holds water in your cells. Powers short, hard sets.

Whey protein

The bricks. They feed training and recovery.

More sets

More volume, same sore legs on Thursday. You can only grow as fast as you recover.

All four help. None of them broke your plateau. Read on.

The why, made small

Three walls stand between your plate and the size you want.

Wall 01

The stall

You add calories week after week, and the scale sits still. Eating more starts to feel like a second job.*

Wall 02

Soft gains

When the scale does move, the weight lands on your waist. Your chest and arms look the same.*

Wall 03

Slow recovery

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 at once.*

“OK. But what is in it?”

Two actives. 400 mg a serving.

Both doses are on the label: two named actives at 200 mg each. The one thing your mass gainer never had was a reason for those calories to turn into muscle. These two are formulated for that job.*

200 mg

1,4-OHP

17β-(1-ketoethyl)-androsta-1,4-dien-3-one, 17α-ol

The main active, formulated to support protein synthesis and nitrogen retention for full, dense size.*

Label 200 mg · Lab test 212 mg

200 mg

The second active

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 October 28, 2025, batch 251028-001. Both actives tested above the label. Our chemist ran the test in-house.

The plan

Real compounds come with a plan. Here is yours.

Equi-Mass suppresses your natural testosterone while you take it. So every cycle ends with PCT: post-cycle therapy, the 4 weeks right after your last dose. Here it is in plain words.

Weeks 1–8Cycle9–12PCT13–16Off
  • Weeks 1 to 8 · Cycle. 2 bottles of Equi-Mass, with Cycle Support from day one.
  • Weeks 9 to 12 · PCT. Stop Equi-Mass. Take Arimidione and Cycle Support every day for 4 weeks.
  • Weeks 13 to 16 · Off. Take 4 weeks off. Then start your next cycle.

Arimidione is formulated to support healthy estrogen balance and natural testosterone production after a cycle.* Cycle Support is built to support liver health and hormone balance from day one to the end of PCT.*

Heads-up: Equi-Mass can raise your appetite, add some water weight, and change liver values on blood work. Some men get skin breakouts. Get blood work before and after your cycle.

How to take it: 2 mL a day. 1 mL in the morning and 1 mL before training. Eat 500 to 750 calories over maintenance, with about 1 gram of protein per pound of body weight.

Spread that protein across your meals. With age, muscle needs more per meal.

Older muscle needs more protein to respond.

From a study of protein. It did not test Equi-Mass.

Protein in one meal that maxed out muscle protein building at rest, per kg of lean mass

Men about 220.25 g
Men about 710.60 g
Per kg of body weight: 0.24 vs 0.40 g. Men in their 40s and 50s were not tested. Moore et al., Journals of Gerontology: Series A, 2015.
What buyers report

What guys report. In their own words.

Four Equi-Mass buyers, quoted from our review page. Results vary, and some buyers see little change.*

01

Recovery

Built to support recovery, so you can train hard again sooner.*

J

Juan H.

Added reps and sets to my work outs, recovering faster, getting stronger…

Mar 10, 2025 · Verified buyer

02

The food finally counts

Joshua could not put on weight.*

Joshua H.

It was so hard to put on weight and turn it into muscle. This was the missing link. It’s not magic liquid that taste good and you don’t have to do anything to build muscle but an amplifier for the work you put in…

Jul 1, 2026 · Verified buyer · Got a discount for adding a photo

03

The bar moves

Mykel was skeptical.*

M

Mykel C.

I was skeptical at first but let me tell yall this stuff actually works tastes terrible but it does work I have been taking equimass for a month now and I have gone up in my bench 25lbs…

Oct 9, 2026 · Verified buyer

04

The wall

Charles hit his at 38.*

C

Charles T.

…When I was almost 38 years old I started noticing my body wasn’t recovering like it used to. I had hit a wall in my gains. Now I’m tearing down the wall and building myself back to better than I was. I’m 50 years old…

May 16, 2026 · Verified buyer · Got a discount for adding a photo

Get the 12-week kit at 50% off

Equi-Mass · PCT included · 650+ Equi-Mass reviews

Brand partners

First CT. Now Lee.

CT Fletcher, 3× World Bench Press Champion, put his name on Vintage Muscle first. IFBB pro Lee Priest signed on in 2026.

(Yes, this is the part where we name drop. We pay them, and we tell you so.)

CT Fletcher and Lee Priest, paid brand partners. Their videos are about the brand as a whole.

What to wait for

What each bottle is built to do.

One bottle lasts 4 weeks. A full cycle is 2 bottles. Results vary with your food, training and sleep.*

Weeks 1 to 4 · Bottle 1

The push

Bottle 1 is built for fuller pumps, climbing lifts and big meals that are easier to finish.*

Kyle B.

Equimass kicked in on day 8 love it feel incredible…

Sep 29, 2026 · Verified buyer · Got a discount for adding a photo

Weeks 5 to 8 · Bottle 2

The size shows

Bottle 2 is built for size you can see in your chest, arms and shoulders.*

Weeks 9 to 16

PCT, then off

4 weeks of Arimidione and Cycle Support. Then 4 weeks off. Then run it again.

Creator videos. Some creators get free product or pay from us.

“Can I keep my creatine and protein?”

Yes. Keep your creatine, protein and pre-workout. Keep eating. Equi-Mass is built to help that work show up as size.*

Medicine: if you take any medicine, are on TRT, or have a medical condition, talk to your doctor before you start. And if one bottle in your stack needs PCT, the stack needs PCT. Equi-Mass does.

From our public review page

Real guys. Real photos. Real words.

(Every review below comes from a verified buyer on our public review page. Some are shortened, and the cuts are marked …)

Ronald B.

It’s been about 2 weeks notice increase I appetite quickly eating a lot more was only eating 4 meals now eating 6, over All strength increase dumbbell shoulder press was 80lbs now 95lbs in Short time hack squat back up to 295 10 rips,so I do see and feel Fuller stronger Iam 59 years old…

Jul 25, 2022 · Verified buyer · Got a discount for adding a photo

S

Scott C.

This stuff works well for me. I have gained muscle. I do not feel bloated. I have definitely gained strength. I am a 56 year old male and will be buying more if I can afford it.

Oct 12, 2023 · Verified buyer

Matt M.

This stuff works! I’m 60 yrs young. And I notice a huge difference when I use Equi-mass. I recommend it to anyone trying to pack on muscle.

Oct 11, 2022 · Verified buyer · Got a discount for adding a photo

W

Walter M.

My strength is going up, training intensity is popping 💪🏾

Sep 19, 2026 · Verified buyer

Richard J.

Great product...I’ve seen massive gain...on my small 54yr old frame

Apr 11, 2022 · Verified buyer · Got a discount for adding a photo

C

Christopher J.

Great cycle always put on noticeable mass when I cycle it alone.

Mar 3, 2026 · Verified buyer

R

Richard B.

This is my second cycle with Equi-mass had great results mass gains in size and strength paired it with nor 19. it takes a bit getting use to the taste but well worth the gains.

Dec 7, 2023 · Verified buyer

Jack W.

Great product… The pump it gives lasts my entire workout. Great edge for a 66 year old.

Oct 9, 2026 · Verified buyer · Got a discount for adding a photo

Rocky G.

I was skeptical, but now I LOVE this stuff. I started off with 1mL to assess tolerance… So after a week, I started using the 2mL as recommended and my muscle strength, recovery, and gains have really been amazing.

Apr 12, 2025 · Verified buyer · Got a discount for adding a photo

Michael D.

This stuff works great. More weight, more reps, more muscle and faster recovery.

Aug 13, 2026 · Verified buyer · Got a discount for adding a photo

650+ Equi-Mass reviews on our public review page. Results vary, and some buyers report little change.* Some reviewers got a discount for adding a photo.

The fit

Is this for you? Straight answer.

This is for you if

  • You eat big and train hard, and the scale has not moved in months.
  • Your shirts used to fit tight across the chest, and now they hang.
  • Creatine and protein got you this far, and your progress has stalled.
  • You are coming back after a long break and want your size back.
  • You will eat in a surplus and run the full PCT.

Skip it if

  • You want to get lean and dry. Equi-Mass is built for size, and it adds some water.*
  • You will not eat in a surplus. Size needs extra food.
  • You do not plan to run PCT. 4 weeks of PCT after each cycle are required.
  • You get drug tested for sports, the military or work.
  • You are under 21, or you have a liver, kidney or heart condition.
The deal

Buy 2. Get 2 free.

Code B2G2 takes 50% off when your cart holds 4 or more bottles. Every button that leads to Equi-Mass applies it for you.

A Vintage Muscle order box with a hat and lifting straps
  • The full 12 weeks, PCT included: 2 Equi-Mass, 1 Arimidione and 3 Cycle Support. $172.50 with B2G2, not $344.97. About $2.05 a day.
  • The easy way: on the Equi-Mass page, tap Add the Solo Mass kit. It adds all 6 bottles with the code on.
  • Free in your cart: 2 digital training guides at 4 or more bottles, so the 12-week kit gets them. A hat and lifting straps at $300 or more after the code.
  • Guarantee: the first bottle of each product has a 30-day guarantee. Not happy? Email us within 30 days of purchase and send it back. Terms.
  • AutoShip: the product page starts you on AutoShip at $65.99 a bottle, shipped and billed every 4 weeks until you cancel. Kits are one-time orders. Change or cancel AutoShip any time in Manage Subscriptions.
Claim the 12-week kit at 50% off

Code B2G2 is applied for you on the next page.

Questions guys ask

Straight answers.

What is PCT, and do I need it?

Yes, you need it. PCT means post-cycle therapy, 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 cycle needs PCT.

How do I take it, and how does it taste?

2 mL a day: 1 mL in the morning and 1 mL before training. It tastes bad. Keep water or juice ready as a chaser.

Do I need to eat more?

Yes. Equi-Mass is built for a bulk, and size needs extra food. Aim for 500 to 750 calories over maintenance, with about 1 gram of protein per pound of body weight every day.

What side effects should I know about?

It 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, and get blood work before and after.

Will Equi-Mass cause hair loss?

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.

Will it show up on a drug test?

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.

I am on TRT. Can I use Equi-Mass?

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.

I am over 50. Will it work for me?

Age alone is not a reason to sit this out. Buyers quoted here range from 50 to 66. Results vary.* If you have a medical condition or take any medicine, talk to your doctor first.

OK. Last thing.

You read the whole page. You know what is in the bottle, what the PCT looks like, and who should skip it. Most pages hope you skip that part.

You already eat the food and lift the weight. Give that work 8 weeks and a plan.* If your first bottle doesn’t earn its spot, email us within 30 days of purchase and send it back.

Start my 8-week cycle

Buy 2, get 2 free with code B2G2 · 30-day first-bottle guarantee

Important safety information

  • Equi-Mass is a prohormone supplement. It suppresses natural testosterone production, so PCT is required. Plan 4 weeks of Arimidione and Cycle Support after each 8-week cycle, then 4 weeks off.
  • It may raise your appetite and add water weight. Some men get skin breakouts.
  • It may change liver values on blood work. Run Cycle Support, and get blood work before and after your cycle.
  • It can show up on a drug test.
  • For men 21 and older with training experience. Not for women, anyone under 21, or anyone with a liver, kidney or heart condition.
  • Talk to a doctor before use, especially if you have a medical condition or take any medicine, including TRT.

*Individual results vary. These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.

CT Fletcher and Lee Priest are paid brand partners. Reviews come from verified buyers on our public review page. They are shortened, and cuts are marked (…). Some reviewers got a discount for adding a photo. Testimonials reflect individual experiences and are not typical results.

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