What is Trenbolone Hexahydrobenzylcarbonate 100 (Astera Labs)?
Astera Labs trenbolone hexahydrobenzylcarbonate at 100mg/ml, in a 10ml vial. Parabolan rounded to a strength you can actually do arithmetic with.
Also sold as Parabolan, Tren Hex, Hexabolan or trenbolone cyclohexylmethylcarbonate.
Trenbolone is a 19-nor compound roughly five times more anabolic and more androgenic than testosterone, milligram for milligram. It does not aromatise at all, so there is no estrogen coming from the trenbolone itself. What it is instead is progestagenic, and that is the part people underestimate. The hexahydrobenzylcarbonate ester is the longest of the three, so this is the trenbolone that needs the fewest injections and takes the longest to leave.
Trenbolone Hexa 100 benefits
- Among the strongest compounds available, and it shows in strength before it shows in size
- Adds lean mass without water, so gains look the way they measure
- Strong nutrient partitioning, which is why it works in a deficit as well as a surplus
- Does not aromatise, so no water retention and no estrogen from the trenbolone itself
- The longest trenbolone ester, so twice weekly is enough
- 100mg/ml rather than the traditional 76.5, so doses are round numbers
Trenbolone Hexa 100 dosage
- Beginner at this compound
- 150 to 200mg per week, which is 1.5 to 2ml
- Intermediate
- 200 to 300mg per week
- Advanced
- 300 to 450mg per week
- Run alongside
- Testosterone, at least matching the trenbolone dose
- Frequency
- Twice weekly
- Half-life
- About 14 days
At 100mg/ml, 200mg a week is 1ml twice. Simpler than the traditional 76.5mg strength, where doses land on awkward numbers.
This is the hardest trenbolone to stop. A fortnight-long half-life means side effects you decide against are still with you well into the following month.
Package content
- Vial
- 10ml sterile multidose
- Strength
- 100mg/ml
- Trenbolone per vial
- 1000mg
- Carrier
- Miglyol 812
- Brand
- Astera Labs
At 200mg a week one vial covers five weeks.
Store below 30°C. Protect from light. Do not freeze. Keep out of reach of children.
Who is Trenbolone Hexa 100 for?
Experienced trenbolone users who want the fewest injections and prefer round numbers to the traditional 76.5mg strength.
PARAMED 76.5 is the same ester at the original Parabolan concentration in sealed ampoules. This one is cheaper per milligram and easier to dose; that one is the heritage strength.
Before you run it. Trenbolone is not a step up from testosterone, it is a different level of compound. Night sweats, insomnia, irritability and a noticeable drop in cardio are normal rather than exceptional. It does not aromatise, but it is progestagenic, so gyno can develop through prolactin and
an aromatase inhibitor will not prevent that. The
estrogen management guide covers why. Run testosterone alongside it, plan
post-cycle therapy before you start, and use
bloodwork rather than how you feel. Not for anyone under 18, and not for women who are pregnant or breastfeeding.
How to use Trenbolone Hexa 100
Intramuscular injection, twice weekly. Wipe the stopper before every draw and rotate sites. The injection technique guide covers it.
Frequently asked questions
Can I run trenbolone on a first cycle?
No. Trenbolone is several times stronger than testosterone and comes with side effects that are hard to interpret if you have no baseline to compare against. A first cycle should be testosterone alone.
By the time trenbolone makes sense you will already know how you respond to testosterone, how your estrogen behaves, and what your bloodwork looks like on cycle.
Will an aromatase inhibitor stop gyno from trenbolone?
No, and this is the single most common mistake with this compound. Trenbolone does not aromatise, so there is no estrogen for an aromatase inhibitor to act on. The gyno risk comes through progesterone and prolactin instead.
That means an AI can be running perfectly and gyno still appears. Prolactin is the marker to watch.
What are the side effects?
Night sweats and insomnia are near universal at any real dose. Irritability and a short temper are common enough that people around you tend to notice before you do. Cardio capacity drops noticeably, sometimes severely.
Beyond that: raised blood pressure, cholesterol moving the wrong way, and heavy suppression of your own testosterone.
Why do some Parabolan products say 76.5mg?
Because that is what the original was. Negma, the French company that made Parabolan, produced it at 76.5mg per ampoule, and the figure stuck as the reference strength for this ester.
It is heritage rather than a quality signal. 100mg/ml is the same compound at a strength that divides cleanly.
How long should a Parabolan cycle be?
Eight to twelve weeks, the same as any trenbolone. The limit is tolerance, not the compound wearing off.
Allow at least two to three weeks after the last injection before post-cycle therapy starts.
