Knowledge Content
#### 1. Beginner Baseline Dosage: 35-70mg per week (5-10mg per day).
https://www.fiercerawsource.com/sarms/sarms-finished-tablets-and-capsules/stromusc-sarms-10mg-rad140-testolone-100.html
First-time users are recommended to start with 5mg per day (35mg per week). This dose provides moderate AR receptor activation and, within 8 weeks, can result in:
- 1.5-2kg increase in muscle mass (primarily in large muscle groups like chest and back);
- 5%-8% increase in strength in compound exercises like bench press and deadlift;
- Minimal suppression of the testosterone axis (approximately 30% decrease in endogenous testosterone), which can resolve spontaneously within 4 weeks after discontinuation. If there are no significant side effects (such as increased nocturia or mood swings) after four weeks, the dosage can be increased to 10mg daily (70mg weekly). This increases muscle growth efficiency by approximately 40%, but liver function (ALT/AST levels) should be monitored concurrently.
#### 2. Advanced Optimized Dosage: 70-105mg weekly (10-15mg daily)
Suitable for those with more than six weeks of SARM experience. A daily dose of 10-15mg significantly enhances nitrogen uptake by muscle cells and increases muscle protein synthesis by 25%. This is particularly effective for small, hard-to-grow muscle groups (such as the biceps and medius). Width around the 8-inch circumference can increase by 0.8-1.2cm. However, cautions are advised:
- Testosterone suppression increases to 50%-60% at this dose, so it is recommended to superimpose low-dose HCG (250 IU per week) to protect gonads.
- Hepatic metabolic stress increases, so concomitant use of other hepatotoxic drugs (such as oral steroids) should be avoided.
- Continuous use should not exceed 12 weeks, as this may induce dyslipidemia (a 15%-20% decrease in HDL).
#### 3. Contraindications and Adjustment Variables
- For individuals weighing less than 70 kg, even with experience, it is not recommended to exceed 12 mg daily (84 mg per week) due to the smaller body surface area, which can lead to drug accumulation.
- If muscle preservation is the goal during a fat-loss period, a "pulse dosing" regimen (8 mg daily, 5 consecutive days per week with 2 days off) can be used to maintain AR receptor sensitivity while reducing endocrine suppression.
- If joint discomfort (such as tingling in the wrist) occurs, the dose should be immediately reduced by 30%, as this may signal oversensitivity of tendon tissue to androgens.
The art of RAD140 dosage lies in "precisely reaching the performance threshold" - when the muscle-building effect no longer increases with increasing dosage, continuing to increase the dosage will only increase the risk. At this time, maintaining the current dosage and optimizing training nutrition is the most cost-effective option.
