Primo Ace 100 – Methenolone Acetate

Primo Ace 100 from Syncom Labs is injectable methenolone acetate, dosed at 100 mg/ml. Methenolone is a DHT-derived anabolic prized for slow, high-quality lean muscle gains with a low androgenic rating rather than rapid size. Because it carries the acetate ester, it has a short half-life and clears the body quickly compared with the enanthate version of the same hormone.

As a guide only, and not medical advice, methenolone acetate needs frequent injections because the acetate ester is short-acting, so users typically inject every other day or daily rather than twice a week, spreading a weekly total across those smaller, more frequent shots. Cycles commonly run around 10 to 12 weeks with the dose held steady rather than escalated, since this compound rewards patience over aggressive dosing. Always confirm your own protocol with a qualified doctor before use.

A testosterone base is generally recommended alongside methenolone, often in the region of 150 to 200 mg per week, because methenolone suppresses natural testosterone production like other anabolic steroids. Methenolone itself does not aromatise, so a dedicated aromatase inhibitor such as anastrozole is not routinely needed and should only be introduced if bloodwork on the testosterone base shows oestradiol running high.

Reported side effects include suppression of natural testosterone, mild acne in some users, occasional hair shedding in those predisposed to it, and a modest negative shift in HDL cholesterol. Bloodwork before the cycle, around week 6, and again roughly 4 weeks after finishing is the sensible way to track how your body is responding, particularly total testosterone, oestradiol, LH, FSH, and liver enzymes.

Both forms deliver the same methenolone hormone, so the muscle-building profile and mild side effect footprint are effectively identical. The difference is the ester: acetate in Primo Ace 100 is short and requires injections every other day or daily, while enanthate is a longer ester dosed roughly twice a week. Some users prefer the acetate form for shorter cycles or when they want the compound to clear faster once the cycle ends.

Every box of Primo Ace 100 we stock is authentic Syncom Labs product carrying its own verification check-code so you can confirm it against the manufacturer before use. Orders are dispatched from the UK on Royal Mail Tracked 24 in plain, discreet packaging, with same-day dispatch when payment clears before midday on a working day, and most customers see delivery within 1 to 2 working days.