Anabolic Steroids: Compound Reference

Anabolic-androgenic steroids are synthetic derivatives of testosterone used to increase muscle mass, strength, and recovery. They work by binding to androgen receptors and enhancing protein synthesis. All AAS suppress the HPTA axis and require blood monitoring for liver function, lipids, haematology, and hormones.

Anabolic Steroids (27)

Testosterone Enanthate

AASTestosterone Ester

Long-ester testosterone. Most common injectable AAS. Used for TRT and cycles.

Effects: Elevates testosterone, estradiol (via aromatization), suppresses LH/FSH, increases haemoglobin/haematocrit, worsens lipids (moderate), can elevate liver enzymes slightly

4-5 days3 months

Testosterone Cypionate

AASTestosterone Ester

Long-ester testosterone. Similar to enanthate. Common in US TRT protocols.

Effects: Same as Testosterone Enanthate - elevates testosterone, estradiol, suppresses HPTA, increases RBC, worsens lipids

5-6 days3 months

Testosterone Propionate

AASTestosterone Ester

Short-ester testosterone. Faster acting, more frequent injections needed.

Effects: Same effects as other testosterone esters but faster onset and clearance. More stable estradiol levels with EOD injection.

0.8-1 day2 weeks

Testosterone Undecanoate

AASTestosterone Ester

Ultra-long-ester testosterone. Used for TRT with infrequent injections (every 10-14 weeks). Brand names: Nebido, Aveed.

Effects: Same as other testosterone esters: elevates testosterone, estradiol (via aromatization), suppresses LH/FSH, increases haemoglobin/haematocrit, worsens lipids (moderate)

20-21 days5+ months

Testosterone Decanoate

AASTestosterone Ester

Long-ester testosterone. The longest-acting of the common injectable esters. No standalone pharmaceutical product exists; best known as the 100 mg tail of Sustanon 250, but sold by UGLs as "Test D".

Effects: Same as other testosterone esters: elevates testosterone, estradiol (via aromatization), suppresses LH/FSH, increases haemoglobin/haematocrit, worsens lipids (moderate). Slower onset and a much longer tail than Enanthate or Cypionate.

7-10 days3 months

Testosterone Gel

AASTransdermal Testosterone

Unesterified testosterone in an alcohol gel, applied to the skin daily. Brand names: Testogel, Testavan, Androgel, Testim, Fortesta, Tostran.

Effects: Elevates testosterone with a daily peak-and-trough curve, aromatises to estradiol, suppresses LH/FSH, raises DHT disproportionately (skin 5-alpha reductase), usually a smaller rise in haemoglobin/haematocrit than injectables

Testosterone itself clears in 10-100 minutes; the gel depot releases over ~24h, so it is dosed daily and reaches steady state in 2-3 days1-2 weeks

Testosterone Cream

AASTransdermal Testosterone

Unesterified testosterone in an oil-based cream, applied daily to the skin or scrotum. Brand names: AndroForte, Testocream, plus compounded 5% and 10% creams.

Effects: Elevates testosterone with a daily peak-and-trough curve, aromatises to estradiol, suppresses LH/FSH, raises DHT sharply (very sharply with scrotal application), usually a smaller rise in haemoglobin/haematocrit than injectables

Testosterone itself clears in 10-100 minutes; the cream depot releases over ~24h, so it is dosed daily and reaches steady state in 2-3 days1-2 weeks

Testosterone Patch

AASTransdermal Testosterone

Adhesive transdermal patch delivering testosterone over 24 hours. Brand names: Androderm, Andropatch, Testoderm.

Effects: Elevates testosterone into the low-normal to mid-normal range, aromatises to estradiol, suppresses LH/FSH, modest DHT rise, minimal effect on haemoglobin/haematocrit at label doses

Delivers continuously over ~24h; applied nightly, steady state within 2-3 days1-2 weeks

Testosterone Undecanoate (Oral)

AASOral Testosterone

Oral testosterone absorbed via the intestinal lymphatics, bypassing first-pass liver metabolism. Brand names: Andriol Testocaps, Jatenzo, Kyzatrex, Tlando.

Effects: Elevates testosterone in short daily peaks, aromatises to estradiol, suppresses LH/FSH, raises DHT disproportionately (gut and liver 5-alpha reductase), raises blood pressure in a meaningful proportion of users

1.5-2 hours in circulation; dosed twice daily with food1-2 weeks

Testosterone Nasal Gel

AASIntranasal Testosterone

Testosterone gel applied inside the nostrils three times daily, producing short pulses rather than steady levels. Brand name: Natesto.

Effects: Produces brief testosterone spikes with a return toward baseline between doses, aromatises to estradiol, largely preserves LH/FSH and sperm production, minimal effect on haemoglobin/haematocrit

Peaks around 40-60 minutes after a dose and falls back within a few hours; dosed 3x daily3-7 days

Nandrolone Decanoate

AAS19-Nor

Long-ester 19-nor compound. Popular for mass and joint relief. Deca-Durabolin.

Effects: Suppresses HPTA strongly, can elevate prolactin significantly, generally gentler on lipids than most AAS, beneficial for joints, may remain detectable in blood tests for months after cessation

6-12 days18 months

Nandrolone Phenylpropionate

AAS19-Nor

Short-ester 19-nor compound. NPP - faster acting than Deca.

Effects: Same as Nandrolone Decanoate but faster onset/clearance. Easier to manage prolactin-related sides.

1-2 days12 months

Trenbolone Acetate

AAS19-Nor

Powerful 19-nor compound. Highly androgenic and anabolic. Short ester.

Effects: Severely worsens lipids (especially HDL), can elevate prolactin, may affect thyroid function, increases haematocrit, can elevate liver enzymes, does not aromatize but has progestogenic activity

1-1.5 days5 months

Trenbolone Enanthate

AAS19-Nor

Long-ester trenbolone. Same compound, less frequent injections.

Effects: Same as Trenbolone Acetate. Longer ester means sides take longer to resolve if issues arise.

5-7 days5 months

Boldenone Undecylenate

AASTestosterone Derivative

Equipoise (EQ). Very long ester. Known for endurance and lean mass.

Effects: Significant increase in haematocrit/haemoglobin (more than most AAS), moderate lipid impact, can lower estradiol in some individuals (acts as mild AI), long detection time

14 days5+ months

Oxandrolone

AASDHT Derivative17α-Alkylated

Anavar. Mild 17α-alkylated DHT derivative. Popular for cutting cycles with relatively low liver stress compared to other orals.

Effects: Significantly lowers SHBG, mild liver stress (17-alpha alkylated but less hepatotoxic than others), worsens lipids (especially HDL suppression), can elevate LDL

8-10 hours3 weeks

Stanozolol

AASDHT Derivative17α-Alkylated

Winstrol. 17α-alkylated DHT derivative. Available as oral or water-based injectable.

Effects: Severely impacts lipids (HDL suppression), significant liver stress (oral form), dramatically lowers SHBG, can worsen joint health, elevates liver enzymes

8-9 hours2 months

Methandrostenolone

AASTestosterone Derivative17α-Alkylated

Dianabol. Classic oral mass builder. 17-alpha alkylated.

Effects: Significant liver stress, elevates ALT/AST/GGT, worsens lipids, strong aromatization (high estradiol), water retention, suppresses HPTA

4-6 hours6 weeks

Oxymetholone

AASDHT Derivative17α-Alkylated

Anadrol. Powerful oral mass builder. 17-alpha alkylated.

Effects: Severe liver stress (highest hepatotoxicity of common orals), dramatically worsens lipids, increases haematocrit significantly, can cause estrogen-like sides despite not aromatizing

8-9 hours8 weeks

Masteron (Drostanolone)

AASDHT Derivative

DHT derivative. Anti-estrogenic properties. Popular for cutting.

Effects: Can mask elevated estradiol (anti-estrogenic at receptor), moderate lipid impact, may elevate PSA, does not aromatize, moderate HPTA suppression

2-3 days (Propionate) / 5-7 days (Enanthate)3 months

Primobolan (Metenolone)

AASDHT Derivative

Mild DHT derivative. Injectable (enanthate) or oral (acetate, 17α-alkylated). Considered one of the safest AAS.

Effects: Mild lipid impact (less than most AAS), minimal liver stress (injectable), does not aromatize, moderate HPTA suppression. Oral form is 17-alpha alkylated with mild liver stress.

5-7 days (injectable) / 4-6 hours (oral)5 months

Sustanon 250

AASTestosterone Ester

Testosterone blend of 4 esters (propionate, phenylpropionate, isocaproate, decanoate). Designed for less frequent injection with multi-phase release.

Effects: Same effects as other testosterone esters — elevates testosterone, estradiol (via aromatization), suppresses LH/FSH, increases haemoglobin/haematocrit, worsens lipids. Mixed esters cause more hormonal fluctuation than single esters.

15-18 days (blend)3+ months

Trestolone (MENT)

AAS19-Nor

7-alpha-methyl-19-nortestosterone. Extremely potent 19-nor AAS. Can replace testosterone as a cycle base. Available as acetate ester.

Effects: Very strong HPTA suppression, aromatises to 7-alpha-methyl-estradiol (not detected on standard E2 assays — use sensitive LC-MS/MS), significant lipid impact, may elevate prolactin (19-nor derivative), does not convert to DHT, highly anabolic

40 min (no ester) / 1-2 days (acetate)Unknown (limited data)

Turinabol

AASTestosterone Derivative17α-Alkylated

Chlorodehydromethyltestosterone (Tbol). Mild oral AAS. 17-alpha alkylated. Originally developed in East Germany for Olympic athletes.

Effects: Moderate liver stress (17-alpha alkylated but milder than Dianabol), worsens lipids (lowers HDL, raises LDL), lowers SHBG, does not aromatise, moderate HPTA suppression

16 hours12 months (long-term metabolites)

Mesterolone (Proviron)

AASDHT Derivative

DHT derivative oral AAS. Weak anabolic, strong androgen. Used as an anti-estrogen adjunct and SHBG reducer to increase free testosterone.

Effects: Dramatically lowers SHBG (increases free testosterone), mild anti-estrogenic effect, does not significantly suppress HPTA at low doses, minimal liver stress (not C17-alpha alkylated in the traditional sense), can worsen lipids moderately, may increase DHT-related sides (hair loss, prostate)

12-13 hours5-6 weeks

Halotestin (Fluoxymesterone)

AASTestosterone Derivative17α-Alkylated

Extremely potent oral AAS. 17-alpha alkylated. Used for strength and aggression in powerlifting and pre-contest hardening. Not a mass builder.

Effects: Severe liver stress (one of the most hepatotoxic common orals), significantly elevates ALT/AST/GGT, dramatically worsens lipids, does not aromatise, strong HPTA suppression, can elevate haematocrit, increases aggression

6-8 hours2 months

Superdrol (Methasterone)

AASDHT Derivative17α-Alkylated

Potent oral AAS. 17-alpha alkylated. Known for rapid dry mass gains. One of the most liver-toxic oral AAS available.

Effects: Severe liver stress (can cause cholestasis), dramatically worsens lipids, significantly elevates ALT/AST, does not aromatise, very strong HPTA suppression, causes lethargy from liver stress at higher doses

8-9 hoursUnknown (limited data)

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