Product Name Letrozole
Alias Femara
CAS 112809-51-5
Purity 99%
Packing foil bag or tin.
Appearance White or light yellow crystal
Standard Enterprise Standard
Storage Shading , confined preservation
Usage Anti-estrogen
Molecular Fomular C17H11N5
Molecular Weight 285.31
Femara (letrozole) is the third generation aromatase inhibitor of type II (non-steroidal). Clinically, it is used to treat postmenopausal women with estrogen receptor positive or unknown breast cancer.
In women with breast cancer, estrogen levels have been shown to decrease by 98% or more (1). However, its use and benefits are not limited to eliminating female estrogen.
For pre-competition bodybuilders, letrozole is almost a necessary condition for eliminating water retention, and can obtain the necessary tear appearance in today's bodybuilding world. However, in my experience, it only needs to be used in the last 4-6 weeks to eliminate excessive estrogen and water retention. With letrozole, I recommend staying away from any estrogen suppression for at least a month in an attempt to normalize the body.
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