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Good Sales Formestane Dosage Bodybuilding Steroids Powder Lentaron Without Side Effects 566-48-3

Good Sales Formestane Dosage Bodybuilding Steroids Powder Lentaron Without Side Effects 566-48-3
Good Sales Formestane Dosage Bodybuilding Steroids Powder Lentaron Without Side Effects 566-48-3

Product Details:

Place of Origin: Legit Steroids China
Brand Name: LML BIO
Certification: GMP,EP,BP,JP,CP
Model Number: 566-48-3
Price: Negotiable
Minimum Order Quantity: 50g ( It can be lowered to 10g for sample order)
Packaging Details: Discreet packing as your required
Delivery Time: Send out within 24hrs ,3 -7 work days for delivery
Payment Terms: Western Union, MoneyGram, T/T, Cash
Supply Ability: 800kg/week
Detailed Product Description
Product Name:Formestane Dosage Bodybuilding Steroids PowderRelated Products:Letrozole, Aromasin, Halotestin, Nolvadex, Clomid, Arimidex
Category:Bodybuilding Steroids PowderFunction:Anti Estrogen, Bodybuilding Cycle, Aromatase Inhibitor
Purity:98% UpShip To:Belgium, Austria, UK, Belarus, Italy, Barbados, USA, Thailand, Estonia And Worldwide
Other Name:Lentaron, 4-hydroxyandrostenedioneCAS:566-48-3
Half-life:4 DaysStorage:In A Cool And Dry Well-closed Container

Best Formestane dosage bodybuilding steroids powder lentaron side effects 566-48-3


What is formestane?

Formestane (lentaron, chemical name: 4-hydroxyandrostenedione) is a type I steroidal aromatase inhibitor (AI). It was developed for use in treatment of estrogen-receptor-positive breast cancer in post-menopausal women. For medical purposes, it is made in intramuscular depot form and injected. It is not used in oral form due to poor bioavailability, which makes the oral version inferior to aromasin, letrozole, and arimidex.

Supplement companies, with a bodybuilder customer base, have made it in topical form. It was available as part of gel stacks, which are rubbed onto the skin with no need for injection. That allowed transdermal delivery, bypassing the liver. In case you are wondering, the reason I use “was” is because formestane is now illegal and a scheduled drug.


History and Ban

Formestane was derived from androstenedione, with the only difference being the addition of a 4-hydroxy group. From the late 2000′s until its ban in late 2014, it grew in popularity among bodybuilders. Its success came from the ability to easily use it in topical gel form.

On December 18, 2014, the Designer Steroid Anabolic Control Act of 2014 was signed into law, making formestane illegal. Since the signing of the act, it has disappeared from the supplemental market onto the black market.


Formestane and Cancer

Some cancers require estrogen to grow, and aromatase is an enzyme that synthesizes estrogen. Formestane is a 2nd generation aromatase inhibitor that blocks this synthesis. Thereby, it lowers estrogen levels and slows cancer growth in the breasts of women.


Formestane Bodybuilding

There are 2 main uses for formestane, which help bodybuilders who use anabolic-androgenic steroids(AAS).


Decreasing SHBG

According to studies, formestane can lower SHBG up to 34%, which will increase free testosterone levels. SHBG (sex hormone binding globulin) is a protein that binds to sex steroids, and renders them inactive, for as long as SHBG is bound to them. There is a difference between ‘free’ testosterone, and ‘bound’ testosterone. Free testosterone is what matters, so lowering SHBG will increase ‘free’ testosterone. Higher testosterone means more strength, muscle mass, less body fat, better sense of well being, and libido.


Formestane Aromatase Inhibitor

Many anabolic steroids aromatize in the body into estrogen. The most common are deca durabolin,equipoise, testosterone, and dbol. If an AI is not used, estrogen will increase and potentially cause major problems with estrogenic side effects. The most common side effects of estrogen aregynecomastia (bitch tits), excessive water retention (moon face), high blood pressure (hypertension), and insomnia.

In addition, coming off cycle with estrogen levels that are too high can hinder recovery of the body’s HPTA, causing gains on cycle to be lost. Formestane, while being used, will permanently disable the aromatase enzyme, so that it does not rebound after cycle. Other AI’s, such as letrozole and arimidex will not stop estrogen rebound.


Suicidal AIs vs Non-Suicidal AIs

There are two types of aromatase inhibitors.

  1. Non-steroidal aromatase inhibitors such as arimidex, and the very potent letrozole, which inhibit the aromatase enzyme by reversible competition.

  2. Suicidal (irreversible) steroidal aromatase inhibitors, such as aromasin, which will form a permanent bond with the aromatase enzyme that permanently deactivates it. The reason we call these suicide AI’s is because these compounds sacrifice their structural independence to disable the aromatase (estrogen) enzyme permanently.

Formestane falls into the 2nd category of suicide aromatase inhibitors, so no estrogen rebound should occur. After formestane use is discontinued, it will take time for aromatase to become active again.


Formestane Side Effects

Formestane does not cause many side effects unless abused. Sometimes bodybuilders will complain of dry joints, mood swings, libido changes, or rashes, which are typical of all AI’s. Another side effect is lower HDL (good) cholesterol, so you have to watch your diet.


Formestane Dosages

The most common version of formestane sold was in a topical gel form and it was dosed at 100-200mgs per application. Users would apply it onto clean, dry skin and rub in thoroughly; usually on the thighs or upper arms. It took 1 to 5 minutes to dry.

The injectable version for both breast cancer purposes and bodybuilders is 125mgs twice per week or 250mgs once per week.


Formestane Half Life

Formestane half life is about 4 days, which is in line with other aromatase inhibitors.




Formestane is a drug that has been previously used in breast cancer treatment. Like most drugs which have some sort of phsyique usage, athletes eventually get a hold of it. Formestane is currently one of the best legal anti-estrogens out there. It is classified as an irreversible arromatase inhibitor, meaning, it destroys the aromatase enzyme.


Another name for formestane is hydroxyandrostenedione. For those of you who don't already know, andostenedione is and always was a lousy physique supplement (or drug, whichever you like to call it). As wel all know, the even the prohormones are now illegal in the US (as of Jan 20th, 2005). Tell me how weird chemistry can be...regular androstenedione is highly aromatizable. It converts to estogen very, very readily. When it was legal and everyone was using some form of it, I heard of numerous cases of gyno from it. At the time it was legal and was an over the counter supplement. Imagine getting gyno from something that isn't even helping you build mass? That sucks.


Anyway, all formestane is, is androstenedione with one little hydroxyl (OH) group atttached at the fourth carbon. This small alteration turns a lousy physique androgen which aromatizes highly and has no real true use for us...into one of the best anti-estrogens you can obtain (legal or otherwise). Weird chemistry, huh?


Formestane has a very long active life on the order of 24-36 hours. You can get any sport supplement version capsules for around $40 US or less. This amount of $ will usually last you about 3-4 weeks at a sufficient dosage of 200-400mg per day. I have found 200mg a day to be perfect for on cycle anti-estrogen usage and for post-cycle recovery of natural testosterone. Formestane has zero negative feedback (even though it is an androgen by definition) and serves to elevate natural testosterone as well as any anti-estrogen/anti-aromatase drug out there, next to clomid.




Product Name: Formestane

CAS: 566-48-3

MF: C19H26O3

MW: 302.41

Formestane Structure: 

Purity 98% white color Anti - aging Healthy Formestane steroids powder CAS 566-48-3

storage temp.: 2-8°C

form : white powder

Product Categories: Pharmaceutical Raw Materials; Miscellaneous Biochemicals; Inhibitors;Intermediates&Fine Chemical;Pharmaceuticals; Steroids; Anti-cancer&immunity


Formestane COA:






:    White or Almost White Crystalline Powder

white powder


:    A.B.



:    97.0~103.0%


Specific Rotation

:    +101°~+105°


Loss On Drying

:    1.0%max


Melting Point

:    153~157°C


Organic Volatile Impurities

:    meets the requirement.


Related Substances

:    meets the requirement.


Residual Solvents

:    meets the requirement.


Particle Size

:    100% ≤ 20 microns



The specification conform with USP30 standard

Formestane Dosage Bodybuilding Steroids Powder Lentaron Without Side Effects 566-48-3


LML BIO advantage: 


Professional Steroids Supplier: LML BIO has been in raw steroid powders for over 9 years, we has the best bodybuilding steroids powder for sale in mass stock, fast and safe shipment can always be arranged after payment down. And we aim to establish long term business relationship with customers all over the world. You are warmly welcomed to ask any questions about products, prices or anything about bodybuilding.

Minimum Order: 50-100 grams.our min packing of each powder is 50g or 100g, but some expensive powder can be bought at several grams.

Payment Method: Western Union,Money Gram,T/T.
Professional Delivery: By courier ( EMS, DHL, Fedex, UPS,TNT) is prefered, bulk order can be negotiated. 5-8 business days delivery in timely manner. Tracking No. is available ,we can provide you latest tracking of our customers to check validity of delivery if you need.

Discreetly Packing: Safe and professional disguised package can be guaranteed.

Plenty In Stock: Most of powders are in stock.We export over 1000 kilograms of steroid powder per month.

High Delivery Rate: Our goods packing will not contain any hormone information and can be sent out from different areas of china. At present,the goods customs clearance rate we send to United states and Europe is 99%,  As for Canada, Brazil of quite high buckle close rate area, we also have a new way to get through the customs. We also have completely re-send policy to some areas.


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