Description
Cambridge Research ACP-105 is one of the latest in a new generation of Selective Androgen Receptor Modulators (SARMs) that is designed to mimic the effects of testosterone. Athletes can benefit from ACP-105’s ability to increase muscle mass, strength, and bone density, without the side effects associated with traditional anabolic steroids. Animal studies show that ACP-105 activity is relative to that of Testosterone.
- Increased muscle mass and strength
- Improved bone density and bone health
- Low risk of side effects
- Does not convert to estrogen
- Can be used for both bulking and cutting cycles
- Not associated with liver toxicity
- Improved cognitive function and memory
What is ACP-105?
Cambridge Research ACP-105 is a selective androgen receptor modulator (SARM) that is designed to mimic the effects of testosterone. ACP-105 was first mentioned in the scientific literature in 2009. [J Med Chem. 2009 Nov 26;52(22):7186-91.] and showed that a relatively low concentration of ACP-105 attaches itself to the androgen receptor better than DHT does.

ACP-105 Chemical Structure
How does Cambridge Research ACP-105 work?
Cambridge Research ACP-105 works by binding to androgen receptors in the body, which leads to an increase in protein synthesis, muscle mass, and bone density. This compound is selective in its binding, which means that it targets specific tissues, such as muscle and bone, while avoiding other tissues, such as the prostate and the hair follicles. This makes it a safer alternative to traditional anabolic steroids, which can have a range of side effects.
What are the benefits of using ACP-105?
The benefits of using ACP-105 include an increase in muscle mass and strength, improved bone density and bone health, and a low risk of side effects. ACP-105 is also known for its ability to improve cognitive function and memory. It can be used for both bulking and cutting cycles, depending on the individual’s goals. Additionally, ACP-105 does not convert to estrogen, which means that it does not cause gynecomastia or other estrogen-related side effects.
- Increased muscle mass and strength
- Improved bone density and bone health
- Low risk of side effects
- Improved cognitive function and memory
- Suitable for both bulking and cutting cycles
- Does not convert to estrogen, which minimises estrogen-related side effects
What are the potential side effects of using ACP-105?
While ACP-105 has a low risk of side effects, it can still cause some adverse effects. The potential side effects of using ACP-105 include mild suppression of natural testosterone production, acne, hair loss, and changes in cholesterol levels. However, these side effects are usually mild and reversible. ACP-105 has not been shown to cause significant liver toxicity, which is a common side effect of traditional anabolic steroids. It is important to note that the safety and long-term effects of ACP-105 are still being studied, and its full range of potential side effects is not yet known.
- Mild suppression of natural testosterone production
- Acne
- Hair loss
- Changes in cholesterol levels
- Virilisation in women at high doses
- Potential liver toxicity (although this is less common compared to traditional anabolic steroids)
- Long-term effects and potential side effects are not yet fully known
Can ACP-105 cause hair loss or acne?
ACP-105 can cause hair loss and acne in some individuals, who may be predisposed to these conditions, although the risk is relatively low compared to traditional anabolic steroids. ACP-105 can cause an increase in dihydrotestosterone (DHT) levels, which is a hormone that is known to cause hair loss and acne.
However, the risk of these side effects can be minimised by using a low dose of ACP-105, and by using hair loss and acne prevention supplements. Additionally, ACP-105 is not recommended for individuals with a history of hair loss or acne, as these side effects may be more pronounced in these individuals.
How to Use Cambridge Research ACP-105
The recommended dose of ACP-105 for men is 20mg every day, split into two doses (10mg in the morning and 6m in the evening). Time one of the doses preferably 30-40 minutes before your workout, after a meal.
ACP-105 Pro is best used in cycles of 8-12 weeks although this can differ according to individual preferences and cycle requirements.
The half-life of this SARM is around 4-6 hours and therefore twice a day (two equal split doses).
It is important to note that the dosage should be adjusted based on the individual’s experience level and tolerance to the compound.
ACP-105 can be used in a solo cycle, or it can be stacked with other compounds for enhanced results.
When cycling ACP-105, it is recommended to use strong antioxidant supplements, such as N-Acetyl Cysteine (NAC) and ALA, to minimise the risk of liver toxicity.
ACP-105 is prohibited by most sporting organisations. ACP-105 is a banned substance according to the World Anti-Doping Agency (WADA), and athletes who test positive for ACP-105 may face disciplinary action, including suspension or disqualification from the competition.
Is ACP-105 more effective for bulking or cutting?
ACP-105 can be used for both bulking and cutting cycles, depending on the individual’s goals.
It is known for its ability to increase muscle mass and strength, which makes it effective for bulking cycles. Additionally, it has a low risk of causing water retention, which makes it suitable for lean bulking.
ACP-105 can also be used for cutting cycles, as it helps to preserve muscle mass while promoting fat loss. The choice of whether to use ACP-105 for bulking or cutting will depend on the individual’s goals and personal response to the compound.
How quickly can I see results from using ACP-105?
The results from using Cambridge Research ACP-105 can vary depending on several factors, such as the individual’s experience level, dosage, cycle length, and training regimen. However, users can expect to see noticeable improvements in muscle mass, strength, and bone density within a few 2-3 weeks of starting the cycle.
It is important to note that the results from ACP-105 are not as dramatic as those from traditional anabolic steroids, and they may take longer to achieve. Additionally, the results from ACP-105 may vary depending on the individual’s response to the compound.
Can Cambridge Research ACP-105 be used by women?
Cambridge Research ACP-105 can be used by women due to its mild androgenic nature and low risk of virilisation. Women who are interested in using anabolic androgenic steroids should consult with a healthcare professional to explore safer alternatives that are less likely to cause virilisation.
What is the difference between ACP-105 and other SARMs?
ACP-105 is a unique SARM that is known for its high selectivity for androgen receptors in muscle and bone tissues, as well as its low risk of side effects. Other SARMs, such as RAD-140 and Ligandrol, also target androgen receptors, but they have different selectivity profiles and potential side effects. For example, Ligandrol has been shown to cause significant suppression of natural testosterone production. Each SARM has its own unique benefits and potential drawbacks, and the choice of which SARM to use will depend on the individual’s goals and personal response to the compounds.
Stacking Cambridge Research ACP-105
This SARM can be stacked with other SARMs and supplements depending on your preference, for example, Cardarine, Stenabolic, and Andarine S-4 for fat loss, or MK-677 and LGD-4033 (Ligandrol) for bulking.
Does ACP-105 require PCT?
ACP-105 can cause mild suppression of natural testosterone production, although the risk is relatively low compared to traditional anabolic steroids. The degree of suppression can vary depending on the individual’s dosage, cycle length, and personal response to the compound. It is recommended to use a PCT (Post Cycle Therapy) protocol after each cycle of ACP-105 to help restore natural testosterone production and minimise potential side effects..
A mild PCT can be used as this compound is mildly suppressive. PCT will usually last for 4-6 weeks. Additionally, supplements such as aromatase inhibitors (AI) and natural testosterone boosters can be used to further support recovery.
It is important to note that the duration and dosage of PCT should be based on the individual’s cycle duration, dosage, and personal response to the compound.
Additionally, it is important to use caution when stacking ACP-105 with other compounds that may further suppress natural testosterone production.
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