Anabolic-androgenic steroids (AAS) are used by some athletes and bodybuilders to increase muscle mass, strength and physical performance beyond what may be achievable through training alone. However, these effects come with potential health consequences, particularly suppression of the body’s natural hormone production.
When exogenous testosterone or other suppressive anabolic compounds are used, the hypothalamic-pituitary-gonadal (HPG) axis can reduce its own signaling and testosterone production. The degree of suppression and the time required for recovery vary considerably depending on the compounds used, duration of use, dose, individual physiology and previous exposure.
After discontinuing AAS, testosterone production may remain suppressed for some time. During this period, users may experience fatigue, reduced libido, changes in mood, reduced training performance and loss of some of the muscle or strength gained during the cycle.
Post Cycle Therapy (PCT) refers to strategies intended to support hormonal recovery after discontinuation of suppressive compounds. It is important to understand that there is no single PCT protocol appropriate for everyone. Recovery can take weeks or months, and blood testing and medical supervision are the safest ways to determine whether treatment is necessary.
SERMs and Hormonal Recovery
Selective estrogen receptor modulators (SERMs) are among the medications most commonly associated with PCT.
Tamoxifen (Nolvadex)
Tamoxifen is a SERM that blocks estrogen signaling in selected tissues. In a medical context, SERMs can influence hypothalamic and pituitary signaling and thereby affect LH and FSH, the hormones involved in endogenous testosterone production.
Available products include:
- T20 Nolvadex / Tamoxifen 20mg
- BIO Nolvadex 20mg
Clomiphene (Clomid)
Clomiphene is another SERM that acts on estrogen receptors and can increase pituitary LH and FSH signaling. It is sometimes used medically in men with certain forms of secondary hypogonadism or fertility problems.
Available products include:
- CD50 Clomid / Clomiphene 50mg
- Fermitial BIO / Clomiphene 50mg
Enclomiphene
Enclomiphene is one of the isomers of clomiphene and has also been investigated for its ability to stimulate LH, FSH and endogenous testosterone production.
Available product:
- EC25 Enclomiphene 25mg
The appropriate medication, dose and duration depend on the individual’s hormonal status. Fixed schedules such as “four weeks for everybody” should therefore be regarded as examples sometimes encountered in bodybuilding practice rather than universal medical protocols.
HCG and Testosterone Function
Human Chorionic Gonadotropin (HCG) acts similarly to luteinizing hormone at the testes and can stimulate testosterone production. For that reason, it is sometimes discussed alongside post-cycle recovery strategies.
However, HCG works differently from SERMs such as Tamoxifen and Clomiphene and should not simply be considered interchangeable with them.
Available product:
- Stromoose HCG 5000 IU
HCG use is particularly worth discussing with a healthcare professional when fertility or prolonged testosterone suppression is a concern.
Estrogen Management
Estrogen management is sometimes relevant during or after AAS use, but aromatase inhibitors should not automatically be included in every PCT.
Excessively reducing estradiol can itself cause problems, including changes in libido, mood, joints and other aspects of health. Ideally, the decision to use an aromatase inhibitor should therefore be based on symptoms together with appropriate laboratory testing.
Products in this category include:
- XE25 Aromasin / Exemestane 25mg
- Aromasial BIO / Exemestane 25mg
- DEX1 Anastrozole 1mg
- Anastroral BIO / Anastrozole 2mg
- LZ25 Letrozole 2.5mg
Aromasin (Exemestane) is an aromatase inhibitor, not a SARM.
Maintaining Muscle and Managing Body Composition
A common concern following an anabolic cycle is maintaining muscle mass and controlling body fat while endogenous hormone levels recover.
Compounds such as Ostarine and Cardarine are sometimes promoted for this purpose. However, they should not be presented as routine components of PCT.
Ostarine (MK-2866) is a SARM and can itself suppress endogenous testosterone production. For this reason, using Ostarine while attempting to restore the HPG axis may work against the fundamental objective of PCT.
Cardarine (GW501516) is not a SARM. It is a PPARδ agonist that has been investigated for its effects on metabolism and endurance. It is not an established treatment for post-cycle hormonal recovery.
Neither should be considered a replacement for adequate nutrition, sleep, training management or medical evaluation during recovery.
Nutritional and General Recovery Support
Hormonal recovery is only one aspect of recovering from an intensive AAS cycle. Sleep, nutrition, hydration, cardiovascular health and adequate micronutrient intake remain important.
Some products can therefore be considered general recovery and wellness support, although they should not be confused with medications intended to affect the HPG axis.
Vitamin B12
Vitamin B12 contributes to normal red blood cell formation, neurological function and cellular metabolism. Correcting a B12 deficiency can be particularly important when fatigue or reduced energy is present.
Available product:
- B1210 Vitamin B12 injectable, 10mg/ml
B12 does not restart testosterone production and should therefore be regarded as nutritional/recovery support rather than PCT medication.
Glutathione
Glutathione is one of the body’s major endogenous antioxidants and participates in cellular antioxidant defense and redox regulation.
Available product:
- GT1200 Glutathione 1200mg
It can fit naturally into a broader recovery or wellness program, but it should not be marketed as a treatment for AAS-induced testosterone suppression.
NAD+
Nicotinamide adenine dinucleotide (NAD+) is a coenzyme involved in cellular energy metabolism and numerous enzymatic processes.
NAD+ products can therefore be positioned as general metabolic and wellness support during periods of recovery.
As with B12 and Glutathione, NAD+ is supportive rather than hormonal PCT and should not be described as restoring testosterone production.
Lipo-B / Metabolic Blend Lipo-B
LC216 Lipo-B / Metabolic Blend Lipo-B can be included in the broader wellness and metabolic-support category.
Lipotropic formulations are generally intended to provide nutritional compounds associated with normal metabolic processes. Their role is distinct from SERMs, HCG and other medications that directly influence reproductive hormone signaling.
It is therefore better positioned as metabolic and nutritional support, rather than as a core PCT product.
A Broader Approach to Post-Cycle Recovery
Successful recovery after an AAS cycle involves more than simply taking another compound. A comprehensive approach should consider:
- Hormonal recovery: Tamoxifen, Clomiphene or Enclomiphene may be relevant in appropriate circumstances.
- Testicular function: HCG has a different mechanism and may be considered in selected situations.
- Estrogen management: Aromatase inhibitors such as Exemestane, Anastrozole or Letrozole should be used only when appropriate rather than automatically.
- General recovery: adequate calories, protein, micronutrients, sleep and sensible training volume are important while hormonal function normalizes.
- Nutritional and wellness support: Vitamin B12, Glutathione, NAD+ and Lipo-B may complement general recovery but do not replace hormonal evaluation or treatment.
Blood tests are particularly useful after an AAS cycle. Depending on the circumstances, evaluation may include total and free testosterone, LH, FSH, estradiol and other health markers. This helps distinguish normal gradual recovery from persistent endocrine suppression that warrants medical assessment.
The key distinction is simple: PCT products and recovery-support products are not the same thing. SERMs and HCG interact with reproductive hormone signaling, whereas products such as B12, Glutathione, NAD+ and Lipo-B are better considered supportive products for general recovery, nutrition and wellness.

