Letrozole – Xeno Labs – 2.5mg – 30tabs

What is Letrozole?

Firstly Letrozole (brand name: Femara) is a third-generation aromatase inhibitor (AI) originally developed to treat estrogen-sensitive breast cancer in postmenopausal women. In the bodybuilding world, Letrozole is used off-label to manage and reduce estrogen levels, especially during or after steroid cycles involving aromatizing compounds (like testosterone, Dianabol, or Deca).

This product is known for being one of the most powerful AIs available, making it effective—but also something that should be used carefully.

Why Bodybuilders Use Letrozole

Controls Water Retention
Subsequently Estrogen buildup can lead to bloated look, water retention, and puffy face. This product dries you out by sharply lowering estrogen levels.

Prevents or Reverses Gynecomastia (Gyno)
Letrozole is strong enough to not only prevent gyno but also reverse early-stage symptoms, such as puffy nipples or sensitive breast tissue.

Supports a Leaner Look
By reducing estrogen-related water weight and fat gain, Letrozole helps athletes look sharper and more defined, especially during cutting phases or pre-contest prep.

Boosts Testosterone (Indirectly)
By suppressing estrogen, Letrozole can signal the body to increase natural testosterone (since estrogen negatively feeds back on testosterone production).

How it Works

This product blocks the aromatase enzyme, which is responsible for converting testosterone into estrogen. By inhibiting this conversion, estrogen levels drop significantly.

Compared to other AIs like Arimidex (Anastrozole) or Aromasin (Exemestane), Letrozole is:

• More potent

• Longer-lasting

Side Effects of Letrozole

Because of its strength, this product comes with a higher risk of side effects:

Too-Low Estrogen (E2 Crash)

• Joint pain, dry skin, fatigue, depression, low libido, erectile dysfunction

Negative Impact on Cholesterol

• Can lower HDL (good cholesterol), especially when combined with steroids

Bone Density Reduction

• Long-term low estrogen can affect bone health

Mood Swings or Brain Fog

• Estrogen is important for mental clarity and mood, even in men

Finally The dosage to follow during PCT is 2.5 mg per day, to ensure good results.

• Laboratory: Xeno Labs
• Form: Oral
• Ingredients: Letrozole
• Concentration: 2.5mg
• Dosage : 5mg /day
• Benefits : reducing oestrogen levels
• Side effects : none