Parabol 76.5 (Trenbolone Hexahydrobenzylcarbonate 76.5 mg/ml)

Parabol 76.5 (Trenbolone Hexahydrobenzylcarbonate 76.5 mg/ml) is Evolve Biolabs' long-ester trenbolone, supplied as a 10 ml multi-dose vial. The hex ester is the slowest-releasing form of trenbolone ever marketed for human use, and the 76.5 mg/ml figure preserves the historical Parabolan dose in a single millilitre.

What Parabol 76.5 Is

Parabol is trenbolone hexahydrobenzylcarbonate, a trenbolone molecule esterified with a long cyclohexyl chain. Trenbolone itself is a potent anabolic androgenic steroid that does not aromatise to oestradiol, so it produces no oestrogen-driven water retention. The hex ester slows release dramatically compared with acetate, which is why Parabolan is associated with smooth, sustained levels rather than sharp peaks. A 10 ml vial carries 765 mg in total.

The History of Parabolan

Trenbolone was developed in the 1960s, and the hexahydrobenzylcarbonate ester was introduced by Roussel-Uclaf in the 1980s under the Parabolan name for human use in France. It was studied in wasting and catabolic conditions before being withdrawn in the late 1990s. Its reputation survived the withdrawal, and Parabolan became one of the most mythologised compounds in physique culture, prized for the stable curve produced by the long ester.

How It Works

The hexahydrobenzylcarbonate chain is cleaved slowly by esterases, so trenbolone is released from the depot over weeks rather than days. The free hormone binds the androgen receptor strongly and cannot be aromatised, and unlike testosterone it is not converted by 5-alpha reductase into a more potent metabolite. Hepatic metabolism and biliary or urinary excretion clear it. That slow release is the reason Parabolan produces unusually stable concentrations.

What the Research Shows

• Trenbolone has been studied extensively in veterinary research for muscle growth and feed efficiency.
• The hex ester is a textbook example of a long-chain ester prolonging release from an intramuscular depot.
• Trenbolone's lack of aromatisation and strong androgen-receptor binding are well documented.
• Human clinical data is limited, and most knowledge comes from animal and pharmacokinetic work.

Research Context

Parabolan's commercial life was short, but it left a lasting mark on pharmacokinetic research. French work in the 1980s studied trenbolone hexahydrobenzylcarbonate in wasting and catabolic states before the product was withdrawn in the late 1990s. The long ester achieved a stability that acetate could not match, and that comparison still appears in reviews of ester pharmacokinetics. Analytical chemists have also mapped trenbolone metabolites in detail, and the hex ester lengthens detection well beyond acetate.

Strength, Pack and Authentication

Each millilitre contains 76.5 mg of trenbolone hexahydrobenzylcarbonate, for 765 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' records.

Buying Parabol 76.5 Online

Parabolan remains one of the most searched long-ester injectables. If you are researching trenbolone hex, comparing Parabolan-style products or looking to buy Parabol 76.5 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.