Decamaxx 400 (Nandrolone Decanoate 400 mg/ml)

Decamaxx 400 (Nandrolone Decanoate 400 mg/ml) is Evolve Biolabs' double-strength Deca, supplied as a 10 ml multi-dose vial. The long decanoate ester delivers sustained release, while 400 mg/ml doubles the active content of a standard nandrolone vial.

What Decamaxx 400 Is

Decamaxx 400 is nandrolone decanoate in oil at 400 mg per millilitre, twice the conventional 200 to 250 mg/ml range. Nandrolone is a 19-nortestosterone derivative that lacks the carbon-19 methyl group, a structural change that reduces aromatisation and alters its metabolism. The decanoate ester is long and lipophilic, forming a depot that releases hormone over weeks. One 10 ml vial carries 4,000 mg of nandrolone decanoate.

The History of Nandrolone Decanoate

Nandrolone was synthesised in the 1950s, and Organon introduced the decanoate ester in the early 1960s as Deca-Durabolin. It became one of the most clinically used anabolic steroids, studied for osteoporosis, wasting and anaemia. Higher-concentration versions appeared later as manufacturers sought to deliver larger doses in smaller volumes. Decamaxx 400 belongs to that tradition of concentrated formulation.

How It Works

Esterases gradually cleave the decanoate chain, releasing free nandrolone over roughly two to three weeks. Nandrolone binds the androgen receptor and supports protein synthesis and nitrogen retention. It is aromatised to oestradiol to a modest degree and can be reduced by 5-alpha reductase to a weaker metabolite, which contributes to its comparatively low androgenic character. The long ester produces stable levels but also a long washout and detection window.

What the Research Shows

• Nandrolone decanoate has been studied in wasting, osteoporosis and anaemia.
• Trials report increases in lean mass and bone mineral density.
• Its metabolites remain detectable for months after administration.
• The 19-nor structure and its reduced aromatisation are well documented.

Research Context

Concentrated nandrolone preparations raise formulation questions. Keeping 400 mg/ml in solution requires careful selection of carrier oil and co-solvent, and the higher viscosity affects how the depot disperses. Researchers comparing Decamaxx 400 with standard Deca are effectively comparing two delivery formats of the same ester, because the active hormone is identical. The pharmacokinetic difference lies in volume and depot behaviour, not in the molecule itself.

Strength, Pack and Authentication

Each millilitre contains 400 mg of nandrolone decanoate, giving 4,000 mg per 10 ml vial. The vial is filled under controlled conditions, sealed with a colour-coded flip-off cap and packed in a printed, tamper-evident carton stating the compound, strength and volume. A verification code on the packaging links the pack to Evolve Biolabs' manufacturing records.

Buying Decamaxx 400 Online

High-concentration Deca is a growing search category. If you are researching nandrolone decanoate 400, comparing double-strength Deca products or looking to buy Decamaxx 400 online from a verified Evolve Biolabs supplier, this page gives you the full specification, pack size, price and live stock status. Browse more Evolve Biolabs injectables at NotNatty.