Library
50 compounds, with half-lives, titration ladders and sources. Every dose carries a tag saying where it came from.
Your own compounds
Anything the library does not carry. Your entries work everywhere a built-in one does, protocols, logging, stock and cost, but they are never shown as researched.
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Your meds
Meds you added yourself. Add one here, then edit its plan or dose.
No meds of your own yet.
Ancillaries & recovery
A non-steroidal aromatase inhibitor, used to hold oestradiol down when an aromatising androgen pushes it up.
Half-life: 2.1 days · also Arimidex
The original oestrogen receptor modulator used to restart the axis. A mixture of two isomers with very different behaviour.
Half-life: Not established · also Clomid, Clomiphene
The isomer of clomiphene that does the useful work, without the long-lingering one that causes most of the complaints.
Half-life: 10 hours · also Enclomiphene citrate, trans-clomiphene
A steroidal aromatase inhibitor that inactivates the enzyme permanently rather than blocking it reversibly.
Half-life: 27 hours · also Aromasin
Acts like LH at the testis, keeping it working while the body's own signal is suppressed.
Half-life: 33 hours · also Human chorionic gonadotropin, Pregnyl
An oestrogen receptor modulator: blocks the receptor in breast tissue while leaving circulating oestradiol alone.
Half-life: 6 days · also Nolvadex
Metabolic
Growth hormone fragment marketed for fat loss. Failed its phase 2b trial.
Half-life: Not established · also hGH fragment 176-191
Long-acting amylin analogue. Investigational.
Half-life: 7.4 days · also AM833, NNC0174-0833
Fixed 1:1 combination of cagrilintide and semaglutide. Filed with the FDA, not approved.
Half-life: 7.1 days · also cagrilintide + semaglutide
The literal C-terminal fragment of growth hormone. Distinct from AOD-9604.
Half-life: Not established · also hGH 176-191
GLP-1 receptor agonist, dosed daily rather than weekly. FDA approved.
Half-life: 13 hours · also Victoza, Saxenda
GLP-1 and glucagon receptor dual agonist, an oxyntomodulin analogue. Approved in China only.
Half-life: 8 days · also IBI362, LY3305677
Triple agonist at the GIP, GLP-1 and glucagon receptors. Investigational.
Half-life: 6 days · also LY3437943, Reta
GLP-1 receptor agonist. FDA approved.
Half-life: 6.7 days · also Ozempic, Wegovy
Glucagon and GLP-1 receptor dual agonist. Investigational.
Half-life: 4.2 days · also BI 456906
GIP and GLP-1 receptor dual agonist. FDA approved.
Half-life: 5 days · also Mounjaro, Zepbound
Anabolic steroids
A long-acting veterinary androgen, originally for horses.
Half-life: Not established · also Equipoise, EQ
A non-aromatising DHT derivative, once used in breast cancer treatment.
Half-life: Not established · also Masteron, Mast P
The original oral anabolic, and still the archetype.
Half-life: 5 hours · also Dianabol, Dbol
A long-acting nandrolone ester, used clinically for anaemia and wasting.
Half-life: 6 days · also Deca-Durabolin, Deca
The short-ester nandrolone, injected every few days instead of weekly.
Half-life: Not established · also NPP, Durabolin
An oral with genuine clinical history, burns recovery and weight restoration, and the best-documented pharmacokinetics of any oral here.
Half-life: 9.4 hours · also Anavar, Oxandrin
An oral DHT derivative, historically used for hereditary angioedema.
Half-life: 9 hours · also Winstrol, Winny
Near-identical in behaviour to enanthate; the ester common in the United States.
Half-life: 4.5 days · also Test C, Depo-Testosterone
The reference long-acting testosterone ester, and the backbone of most replacement regimens.
Half-life: 4.5 days · also Test E, Delatestryl
A short ester needing frequent injection, with correspondingly little accumulation.
Half-life: 19 hours · also Test P
A very long depot given every ten to fourteen weeks rather than weekly.
Half-life: 33.9 days · also Nebido, Aveed
A cattle-growth implant compound. Never developed for human use, and no human pharmacokinetic data exists.
Half-life: Not established · also Tren A, Finaplix
The long-ester trenbolone. The same absence of human data applies.
Half-life: Not established · also Tren E
Repair & healing
Synthetic 15-amino-acid gastric peptide used for soft-tissue and gut repair.
Half-life: 25 minutes · also Body Protection Compound 157, Pentadecapeptide BPC 157
The three-amino-acid tail of alpha-MSH. Anti-inflammatory, and it works in the gut.
Half-life: Not established · also Lys-Pro-Val, alpha-MSH 11-13
BPC-157 supplied as an arginine salt. The same peptide, not a new molecule.
Half-life: 25 minutes · also PDA, BPC-157 arginate
A seven-amino-acid fragment of thymosin beta-4. Not the same molecule as thymosin beta-4 itself.
Half-life: Not established · also Ac-LKKTETQ, thymosin beta-4 fragment 17-23
Growth hormone axis
The long-acting version, which binds albumin and lasts days rather than minutes.
Half-life: 6 days · also DAC:GRF, CJC-1295 DAC
A short-acting GHRH analogue. Often paired with a ghrelin agonist.
Half-life: 30 minutes · also Modified GRF 1-29, Mod GRF 1-29
A hexapeptide ghrelin receptor agonist. Strongly appetite-stimulating.
Half-life: 2.5 hours · also SKF-110679, CIGB-500
A selective ghrelin receptor agonist, chosen for not raising cortisol or prolactin.
Half-life: 2 hours · also NNC 26-0161
Growth hormone itself, rather than something that asks your pituitary to make more of it.
Half-life: 2.6 hours · also Human growth hormone, HGH
A stabilised GHRH analogue. The only FDA-approved compound in this category.
Half-life: 24 minutes · also Egrifta, TH9507
Longevity & mitochondrial
A four-amino-acid peptide studied in Russia for telomerase activation and ageing.
Half-life: Not established · also Epithalon, Ala-Glu-Asp-Gly
A 16-amino-acid peptide encoded in mitochondrial DNA.
Half-life: Not established · also mitochondrial ORF of the twelve S rRNA type-c
A four-amino-acid peptide that binds cardiolipin in the inner mitochondrial membrane. Approved in the United States in September 2025, for one rare disease.
Half-life: Not established · also Elamipretide, Bendavia
Skin & cosmetic
Blends
A four-peptide repair blend, sold as 80 mg in a 5:1:1:1 ratio.
Half-life: Not established · also KLOW 80, GHK-Cu + BPC-157 + TB-500 + KPV
BPC-157 and TB-500 together, usually in equal parts.
Half-life: Not established · also BPC-157 + TB-500
Immune
The body's own 37-amino-acid antimicrobial peptide.
Half-life: Not established · also human cathelicidin, hCAP18 fragment
A 28-amino-acid thymic peptide. Approved in around 35 countries, though not the US.
Half-life: 2 hours · also thymalfasin, Zadaxin
Sexual function
Cognitive
An anxiolytic peptide developed in Russia, and the usual companion to Semax.
Half-life: Not established · also TP-7, Selanx
A heptapeptide ACTH fragment analogue, used in Russia as a nootropic and stroke drug.
Half-life: Not established · also Met-Glu-His-Phe-Pro-Gly-Pro
Meds & supplements
Common oral supplements and medicines. Half-life, mechanism, and interactions with peptide and anabolic protocols. 11 entries.
Hair
A type II 5-alpha reductase inhibitor that blocks conversion of testosterone to DHT, used for male-pattern hair loss and BPH.
A dual-action 5-alpha reductase inhibitor (type I and II) that produces a deeper DHT reduction than finasteride.
A vasodilating antihypertensive used in low doses to promote hair growth. Oral low-dose use for hair loss is off-label.
Omega / Fish oil
Long-chain polyunsaturated fatty acids that reduce triglycerides, support cardiovascular health and have anti-inflammatory effects.
Mineral
An essential mineral cofactor for over 300 enzymatic reactions, including ATP production, protein synthesis and muscle contraction.
An essential trace mineral required for testosterone synthesis, immune function, wound healing and hundreds of enzymatic reactions.
Vitamin
A fat-soluble vitamin that acts as a hormone, regulating calcium, bone mineralisation, immune function and testosterone production.
A water-soluble vitamin essential for nerve function, DNA synthesis and red blood cell formation.
Performance support
A precursor to glutathione, the body's primary intracellular antioxidant. Used for liver support, mucolysis and antioxidant defence.
The most evidence-backed ergogenic supplement, increasing phosphocreatine stores in muscle to improve strength, power and recovery.
Sleep
The primary circadian hormone, produced by the pineal gland at night. Used to shift sleep timing, treat jet lag and improve sleep onset.