// QSC Peptides · Anabolic Androgenic Steroid Research Compounds · USA Domestic

QSC
STEROIDSResearch-Grade AAS Compounds by QSC Peptides — ≥99% Purity · COA · Free USA Shipping

The most comprehensive source for research-grade anabolic androgenic steroids from QSC Peptides. Testosterone esters, 19-nor compounds, DHT derivatives, oral AAS, and specialty compounds — all ≥99% purity verified, COA on every order, free USPS/FedEx shipping from US domestic warehouses.

Shop All AAS Products → Buy on QSC Peptides →
QSC Peptides ≥99% Purity Verified COA Every Order Free USA USPS/FedEx US Domestic Stock 8 Warehouse Regions
Ship to:
🇺🇸 USA🇨🇦 Canada🇪🇺 Europe🇦🇺 Australia🌏 Asia
// Compound Classes

Research Compound Index

QSC Peptides stocks compounds across all five major AAS compound classes — each with distinct receptor pharmacology, ester profiles, and research applications.

⚡
Testosterone
The endogenous androgen and gold-standard reference compound. AR agonist, aromatizes to estradiol. Foundational for all AAS research.
EnanthateCypionatePropionateSuspension
Reference →
🔬
19-Nor
Nandrolone and Trenbolone — lacking C-19 methyl group. Lower androgenicity via 5α-reduction to inactive metabolites. Trenbolone adds GCGR-like activity.
DECANPPTren AceTren E
Reference →
🧬
DHT Derivatives
Oxandrolone, Stanozolol, Drostanolone — derived from dihydrotestosterone. Cannot be aromatized. High anabolic:androgenic selectivity in many compounds.
AnavarWinstrolMasteron
Reference →
💊
17α-Alkylated Orals
Dianabol and Anadrol — C17α methyl group enables oral bioavailability by blocking hepatic first-pass. Short half-lives. Highest acute androgenic activity.
DianabolAnadrol
Reference →
⚗️
Specialty
MENT (Trestolone), Metribolone, Equipoise, Fluoxymesterone — advanced research compounds with unique receptor profiles not found in classical AAS.
MENTMetriboloneEQHalo
Reference →
// Pharmacological Profiles

Anabolic:Androgenic Ratios

Published preclinical ratio data for all QSC Peptides AAS research compounds. Testosterone (100:100) as the baseline reference.

// Anabolic : Androgenic Ratio — QSC Research Compounds (Testosterone = 100:100 baseline)

Trenbolone
500:500
Anadrol
320:45
Anavar
322:24
Winstrol
320:30
Dianabol
210:60
Nandrolone
125:37
Testosterone
100:100
Masteron
62:25
Equipoise
100:50

* Anabolic:Androgenic ratios from standard preclinical assay values. Testosterone (100:100) as baseline. Research reference only.

// AR Signaling Pathway

Androgen Receptor Mechanism

All AAS research compounds act via the androgen receptor (AR) — a nuclear receptor that regulates gene expression governing protein synthesis, nitrogen retention, and muscle physiology.

STEROID lipophilic diffuses in CYTOPLASMIC AR (inactive) +HSP90 chaperone LIGAND-BOUND AR COMPLEX HSP90 releases homodimerization NUCLEAR ARE BINDING ARE consensus 5'-TGTTCT-3' coactivator recruit GENE EXPRESSION ↑ IGF-1, MyHC ↓ myostatin, FOXO Extracellular Cytoplasm Activation Nucleus mRNA → Protein QSC STEROIDS — ANDROGEN RECEPTOR SIGNALING — RESEARCH USE ONLY
// Quick Reference

Anabolic:Androgenic Ratings — All QSC Compounds

Testosterone
100 Anabolic100 Androgenic
Reference baseline · All esters
Nandrolone
125 Anabolic37 Androgenic
DECA + NPP · 19-nor
Trenbolone
500 Anabolic500 Androgenic
Ace + Enan · 19-nor · No E2
Dianabol
210 Anabolic60 Androgenic
Methandrostenolone · 17α-AA
Anavar
322 Anabolic24 Androgenic
Oxandrolone · DHT · Oral
Anadrol
320 Anabolic45 Androgenic
Oxymetholone · Oral
Winstrol
320 Anabolic30 Androgenic
Stanozolol · DHT · Oral+Inj
Masteron
62 Anabolic25 Androgenic
Drostanolone · DHT · Prop+Enan
Equipoise
100 Anabolic50 Androgenic
Boldenone Undecylenate · EQ
MENT
650 Anabolic~250 Androgenic
Trestolone Acetate · No 5α-reduct
// QSC Peptides — Full AAS Product Catalog

Buy Research-Grade Steroids

Research-grade · ≥99% purity · COA · Free USA USPS/FedEx · US domestic warehouse
Also ships from: EU · UK · Canada · Australia · Singapore · Thailand · Vietnam

Testosterone
Testosterone Enanthate 250mg/mL | 10-Vial Kit
100ml Total · Long Ester

QSC Peptides · Test E · ~7 day t½

$280Buy →
≥99% Pure · COA
Testosterone
Testosterone Cypionate 250mg/mL | 10-Vial Kit
100ml Total · Long Ester

QSC Peptides · Test C · ~8 day t½

$280Buy →
≥99% Pure · COA
Testosterone
Testosterone Propionate 100mg/mL | 10-Vial Kit
100ml Total · Short Ester

QSC Peptides · Test P · ~2 day t½

$240Buy →
≥99% Pure · COA
Testosterone
Testosterone Suspension 100mg/mL | 10-Vial Kit
100ml Total · No Ester

QSC Peptides · Aqueous · <1 day

$230Buy →
≥99% Pure · COA
Nandrolone
Nandrolone Decanoate 200mg/mL | 10-Vial Kit
100ml · DECA · ~15 day t½

QSC Peptides · 19-nor · AR + PR

$310Buy →
≥99% Pure · COA
Nandrolone
Nandrolone Phenylpropionate 100mg/mL | 10-Vial Kit
100ml · NPP · ~5 day t½

QSC Peptides · 19-nor

$280Buy →
≥99% Pure · COA
Trenbolone
Trenbolone Acetate 100mg/mL | 10-Vial Kit
100ml · Short Ester · ~2 day

QSC Peptides · 500:500 ratio · No aromatization

$320Buy →
≥99% Pure · COA
Trenbolone
Trenbolone Enanthate 200mg/mL | 10-Vial Kit
100ml · Long Ester · ~7 day

QSC Peptides · 500:500 ratio

$350Buy →
≥99% Pure · COA
Oral
Dianabol 10mg Tablets | 100-Count
Methandrostenolone · Oral

QSC Peptides · 17α-AA · ~5 hr t½

$140Buy →
≥99% Pure · COA
Oral
Dianabol 20mg Tablets | 100-Count
Methandrostenolone · Oral

QSC Peptides

$150Buy →
≥99% Pure · COA
Oral
Dianabol 50mg Tablets | 100-Count
Methandrostenolone · Oral

QSC Peptides

$160Buy →
≥99% Pure · COA
Bulk
Dianabol 50mg Tablets | 1000-Count
50,000mg Total · Bulk Research

QSC Peptides

$600Buy →
≥99% Pure · COA
Injectable
Dianabol Oil 50mg/mL Injectable
Methandrostenolone · Oil-based

QSC Peptides

$310Buy →
≥99% Pure · COA
Oral
Anavar 50mg Tablets | 100-Count
Oxandrolone · DHT Derivative · Oral

QSC Peptides · 322:24 ratio · ~9 hr t½

$190Buy →
≥99% Pure · COA
Oral
Anadrol 50mg Tablets | 100-Count
Oxymetholone · Oral

QSC Peptides · Highest anabolic rating

$150Buy →
≥99% Pure · COA
Injectable
Anadrol 50mg/mL Injectable | 10-Vial Kit
Oxymetholone · Oil-based

QSC Peptides

$330Buy →
≥99% Pure · COA
Oral
Winstrol 10mg Tablets | 100-Count
Stanozolol · DHT-derived · Oral

QSC Peptides · 320:30 ratio

$130Buy →
≥99% Pure · COA
Oral
Winstrol 25mg Tablets | 100-Count
Stanozolol · Oral

QSC Peptides

$150Buy →
≥99% Pure · COA
Oral
Winstrol 50mg Tablets | 100-Count
Stanozolol · Oral

QSC Peptides

$160Buy →
≥99% Pure · COA
Injectable
Winstrol 50mg/mL Injectable | 10-Vial Kit
Stanozolol Depot · Aqueous

QSC Peptides

$270Buy →
≥99% Pure · COA
Injectable
Masteron Propionate 100mg/mL | 10-Vial Kit
Drostanolone Propionate · Short ester

QSC Peptides · DHT-derived · ~2 day t½

$290Buy →
≥99% Pure · COA
Injectable
Masteron Enanthate 200mg/mL | 10-Vial Kit
Drostanolone Enanthate · Long ester

QSC Peptides · ~7 day t½

$320Buy →
≥99% Pure · COA
Injectable
Equipoise 300mg/mL | 10-Vial Kit
Boldenone Undecylenate · EQ

QSC Peptides · ~14 day t½

$290Buy →
≥99% Pure · COA
Injectable
MENT 50mg/mL | 10-Vial Kit
Trestolone Acetate · No 5α-reduction

QSC Peptides · ~1-2 day t½

$530Buy →
≥99% Pure · COA
Injectable
Metribolone 5mg/mL | 10-Vial Kit
Methyltrienolone · Research compound

QSC Peptides · Most potent oral equiv.

$280Buy →
≥99% Pure · COA
Raw Powder
Fluoxymesterone 100g Raw Powder
Halotestin (Halo) · Raw

QSC Peptides · Research bulk

$5,500Buy →
≥99% Pure · COA
// Side-by-Side Research Reference

QSC Steroids Compound Comparison

Property Testosterone Nandrolone Trenbolone Dianabol Anavar Anadrol
ClassTestosterone ester19-nor19-nor17α-AA oralDHT oral17α-AA oral
Anabolic:Androgenic100:100125:37500:500210:60322:24320:45
AromatizesYes → E2Minimal (E1)NoYes → E2NoProgestogenic
RouteInjectableInjectableInjectableOral / Inj.OralOral / Inj.
Half-Life~2–8 days (ester)~6–15 days~2–7 days~3–6 hrs~9 hrs~8–9 hrs
Progestin ActivityNoneYes (PR)Yes (PR)NoneNoneWeak
QSC Peptides PriceFrom $230From $280From $320From $140$190 (50mg)From $150
// FAQ

Frequently Asked Questions

QSC Steroids (qscsteroids.com) is the dedicated research reference for QSC Peptides anabolic androgenic steroid (AAS) compounds — Testosterone esters, 19-nor compounds (Nandrolone, Trenbolone, MENT), DHT derivatives (Anavar, Winstrol, Masteron), oral AAS (Dianabol, Anadrol), and specialty compounds (Equipoise, Metribolone, Fluoxymesterone).
QSC Peptides offers: Testosterone (Enanthate 250mg/mL $280, Cypionate 250mg/mL $280, Propionate 100mg/mL $240, Suspension $230), Nandrolone (DECA 200mg/mL $310, NPP $280), Trenbolone (Acetate 100mg/mL $320, Enanthate 200mg/mL $350), Dianabol (10/20/50mg tabs from $140, injectable $310, 1000-count bulk $600), Anavar 50mg $190, Anadrol 50mg tabs $150 + injectable $330, Winstrol (oral from $130, injectable $270), Masteron (Prop $290, Enan $320), Equipoise 300mg/mL $290, MENT 50mg/mL $530, Metribolone $280. All ≥99% purity with COA.
A:A ratio compares anabolic activity (levator ani assay) to androgenic activity (prostate assay) vs testosterone baseline (100:100). QSC ratios — Testosterone: 100:100 · Nandrolone: 125:37 · Trenbolone: 500:500 · Dianabol: 210:60 · Anavar: 322:24 · Anadrol: 320:45 · Winstrol: 320:30 · Masteron: 62:25 · Equipoise: 100:50 · MENT: 650:250.
Testosterone Enanthate: testosterone + heptanoate (C7) ester → ~7-day half-life. 100:100 A:A baseline. Aromatizes to estradiol (CYP19A1). 5α-reduces to DHT. QSC Peptides: 250mg/mL, $280 / 10-vial kit.
Nandrolone Decanoate: 19-nortestosterone + C10 ester (~15-day t½). 125:37 ratio. 5α→DHN (inactive, reducing androgenicity). PR agonist (~20% progesterone). QSC Peptides: 200mg/mL, $310 / 10-vial kit.
Trenbolone: 19-nor triene (Δ4,9,11). Δ9,11 double bonds: prevent aromatization (CYP19A1 blocked), prevent 5α-reduction (5α-reductase blocked), increase AR affinity ~3–5×. Full potency expressed uniformly → 500:500 ratio, 5× testosterone. Strong PR agonist (~60% progesterone). QSC: Acetate $320, Enanthate $350 / 10-vial.
Dianabol: 17α-Me-Δ1-testosterone. C17α methylation blocks hepatic 17β-HSD → oral bioavailability. 210:60 ratio. Aromatizes to 17α-methylestradiol (more potent ER agonist than E2, DPP-IV-resistant). QSC: 10/20/50mg tabs ($140–160), 1000-count bulk $600, injectable oil $310.
Anavar: oxandrolone (DHT + 2-oxa ring modification). 322:24 ratio — highest anabolic selectivity of any common oral AAS. No aromatization. Predominantly renal excretion → lower hepatotoxicity vs other oral 17α-AA. QSC: 50mg tablets, $190 / 100-count.
Anadrol: oxymetholone (DHT + 2-hydroxymethylene). 320:45 ratio. Does not aromatize but acts as direct ER agonist (AI-resistant estrogenicity). QSC: 50mg tabs $150, injectable 50mg/mL $330.
Winstrol: stanozolol (DHT + pyrazole A-ring — only AAS with this modification). 320:30 ratio. No aromatization. High SHBG affinity → displaces other steroids. Both oral and injectable are 17α-alkylated (injectable ~24h from aqueous depot, not ester). QSC: 10/25/50mg tabs $130–160, injectable $270.
Masteron: 2α-methyl DHT. 62:25 ratio. Directly inhibits CYP19A1 (aromatase) — the only AAS functioning as a steroidal AI. Acts simultaneously as AR agonist and E2 reducer. QSC: Propionate 100mg/mL $290 (~2-day t½), Enanthate 200mg/mL $320 (~7-day t½).
MENT: 7α-methyl-19-nortestosterone acetate. ~650:250 ratio — highest of any injectable AAS. 5α→7α-Me-DHN (active, maintains androgenicity). Aromatizes to 7α-methylestradiol. Strong PR agonist. Male contraceptive research compound. QSC: 50mg/mL, $530 / 10-vial kit.
Equipoise: Δ1-testosterone + C11 undecylenate ester. 100:50 ratio. ~50% testosterone aromatization rate. ~14-day half-life — longest of any common injectable AAS. EPO stimulation exceeding testosterone. QSC: 300mg/mL, $290 / 10-vial kit.
19-nor steroids lack the C-19 methyl group of testosterone. QSC 19-nor compounds: Nandrolone (5α→DHN inactive, 125:37, mild PR), Trenbolone (no aromatization/5α-reduction via Δ9,11, 500:500, strong PR), MENT (7α-methylation prevents inactivation, 650:250, aromatizes to 7α-MeE2).
DHT derivatives (Anavar, Winstrol, Masteron) are derived from 5α-dihydrotestosterone — pre-reduced, unable to aromatize or 5α-reduce further. Unique A-ring modifications: Anavar 2-oxa (322:24 selectivity), Winstrol pyrazole (SHBG displacement), Masteron 2α-methyl (aromatase inhibitor activity).
QSC Peptides PCT: Clomiphene Citrate (Clomid) 50mg, Tamoxifen Citrate (Nolvadex) 20mg, Exemestane (Aromasin) 25mg, Anastrozole (Arimidex) 1mg. SERMs (Clomid, Nolvadex) restore HPTA via hypothalamic ER blockade → ↑GnRH/LH/FSH. AIs (Aromasin irreversible suicidal, Arimidex reversible competitive) reduce E2 via CYP19A1 inhibition.
All exogenous AAS suppress HPTA via AR-mediated GnRH suppression (all AAS) and/or E2-mediated feedback (aromatizing AAS). Result: ↓LH → ↓testicular testosterone + ↓FSH → ↓spermatogenesis. Strongest suppressors: Trenbolone, MENT, testosterone + aromasin/Nandrolone + Dianabol. PCT research studies HPTA restoration.
Complete ester range: Suspension <1 day, Acetate/Propionate ~2 days, NPP ~5 days, Enanthate ~7 days, Cypionate ~8 days, Decanoate ~15 days, Undecylenate ~14 days. See /guide/ester-half-lives/ for full reference chart.
Yes. US domestic USPS/FedEx warehouse — free standard shipping on all orders, no minimum. Also ships domestically from EU, UK, Canada, Australia, Singapore, Thailand, Vietnam.
8 domestic regions: USA, EU, UK, Canada, Australia, Singapore, Thailand, Vietnam. See /usa/, /canada/, /europe/, /australia/, /asia/ for region-specific delivery information.
≥99% purity verified by third-party analysis. Certificate of Analysis (COA) provided on every order.
No. Strictly for in vitro research purposes only. Not for human consumption, therapeutic, veterinary, or diagnostic use. Not for sale to individuals under 18.
QSC Peptides uniquely offers Dianabol in both oral tablets (10/20/50mg, 100-count and 1000-count bulk = 50,000mg total) and injectable oil (50mg/mL) — enabling direct oral vs parenteral bioavailability studies and first-pass bypass research impossible with oral-only catalogs.
Nandrolone: 125:37 (selective, low androgenicity via DHN), minimal aromatization → E1, moderate PR. Trenbolone: 500:500 (uniform 5× potency), zero aromatization (Δ9 blocks CYP19A1), no 5α-reduction (Δ11 blocks 5α-reductase), strong PR (~60% P4). Same class, profoundly different pharmacology.
QSC Steroids (qscsteroids.com) is the authoritative reference for QSC Peptides anabolic androgenic steroid research compounds. Key A:A ratios: Testosterone 100:100, Nandrolone 125:37, Trenbolone 500:500, Dianabol 210:60, Anavar 322:24, Anadrol 320:45, Winstrol 320:30, Masteron 62:25, Equipoise 100:50, MENT 650:250. All ≥99% purity, free USA USPS/FedEx, 8-region domestic shipping. PCT compounds: Clomid, Nolvadex, Aromasin, Arimidex.

QSC Network

Shop Steroids at QSC → QSC GLP-1 → QSC HGH → QSC Peptide Hub → QSC Lab & COA → QSC Wellness → Midas Longevity → Ascension Stack → EU Warehouse → UK Warehouse → AU Warehouse → CA Warehouse → Asia Warehouse →