Everything we've looked at
Every peptide, graded straight.
Each card gets two grades. How solid the human evidence actually is, and how safe the compound is to use. Filter by what you're trying to figure out. How we grade →
42 compounds
PROVEN
A
Sci
B
Safe
Tesamorelin
Egrifta · GHRH analog
ForVisceral fat reduction
Dose2 mg SubQ once daily (Egrifta) or 1.28 mg SubQ once daily (EGRIFTA WR room-temp formulation), prescription only
HandleFragile · Fragile GHRH analog. Add diluent slowly down the vial wall without agitation, never shake. Methionine oxidation and backbone hydrolysis begin immediately after reconstitution. Refrigerate at 2 to 8C, use within 28 days, most potency failures occur within the first 72 hours. Do not leave at room temperature or refreeze after mixing.
PROVEN
A
Sci
B
Safe
Thymosin Alpha-1
Thymalfasin, Tα1, TA1, Zadaxin (brand)
ForImmune modulation
Dose1.6 mg SubQ twice weekly, clinical regimen for hepatitis, community protocols mirror this
HandleModerate · Moderately sensitive. Reconstitute with bacteriostatic water, swirl gently over 2 to 5 minutes, never shake. Refrigerate reconstituted solution at 2 to 8C and use within 2 to 3 weeks. Do not freeze reconstituted solution, freeze-thaw cycles damage activity. Community reports cite storage failures as a real source of non-response.
PROVEN
A
Sci
C
Safe
PT-141 (Bremelanotide)
Bremelanotide, Vyleesi, PT-141, the "arousal peptide"
ForSexual desire, libido
Dose1.75 mg SubQ (approved Vyleesi dose) 45 minutes before activity, max 1 dose per 24 hours and 8 per month. Gray-market protocols often report 1 to 2 mg.
HandleModerate · Regulated Vyleesi ships as a pre-filled single-use autoinjector, no reconstitution needed. Gray-market lyophilized vials require bacteriostatic water, gentle swirl down the vial wall, refrigeration after mixing, and use within about 30 days. Protect from light and heat. Do not refreeze reconstituted solution. Sensitivity is a gray-market-only concern but a real one.
PROVEN
A
Sci
C
Safe
Semaglutide
Ozempic / Wegovy / Rybelsus (GLP-1 receptor agonist)
ForWeight loss, glycemic control
Dose0.25 mg SubQ weekly (starter), titrate over 16 weeks to 2.4 mg weekly maintenance (Wegovy label). Compounded vials vary, verify mg/mL before drawing.
HandleModerate · FDA pens need no reconstitution. Compounded lyophilized powder: add bacteriostatic water slowly down the vial wall, swirl gently, never shake, refrigerate immediately at 2 to 8 C, use within 28 days. Sensitive to heat above 30 C, light, and moisture.
PROVEN
A
Sci
B
Safe
Tirzepatide
Mounjaro (T2D), Zepbound (obesity/OSA); LY3298176; "tirz"
ForWeight loss, glycemic control
Dose2.5 mg SubQ once weekly titrating up to 5, 10, or 15 mg once weekly, FDA-approved prescription label
HandleRobust · Commercial pens and vials need no reconstitution. Refrigerate per label, short room-temperature excursions are acceptable per FDA label. Compounded or research-grade lyophilized versions require bacteriostatic water reconstitution and refrigeration, and are the main source of dosing errors, not sensitivity failures.
PROVEN
A
Sci
B
Safe
Melanotan I (afamelanotide)
Melanotan-1, MT-I, MT-1, CUV1647, Nle4-D-Phe7-α-MSH, Scenesse, EI-_05x (Epitan)
ForSunless tanning, EPP photoprotection
DoseFDA-approved: 16 mg implant every 2 months by provider. Gray-market injectable: 0.5 to 1 mg SubQ daily loading, no validated protocol.
HandleModerate · Add bacteriostatic water slowly down the vial wall, swirl gently, never shake. Refrigerate immediately at 2 to 8 C, use within 30 days. Oxidation of methionine residues accelerates after 4 weeks even with benzyl alcohol present.
PROMISING
B
Sci
B
Safe
ARA-290 (Cibinetide)
Cibinetide; ARA290; Helix B Surface Peptide (HBSP); pyroglutamate helix-B surface peptide (pHBSP)
ForNeuropathy, nerve repair
Dose4 mg SubQ once daily. Trial courses ran 28 days. Gray-market use copies this pattern.
HandleFragile · Fragile 11-amino-acid chain, sensitive to mechanical stress and temperature. Warm vial to room temperature before opening. Add bacteriostatic water slowly down the vial wall, swirl gently, never shake. Refrigerate at 2 to 8 C, use within 28 days. Avoid temperature excursions above 8 C after mixing. Do not freeze reconstituted solution.
PROMISING
B
Sci
C
Safe
VIP (Vasoactive Intestinal Peptide)
Aviptadil, RLF-100, ZYESAMI, vasoactive intestinal polypeptide, VIP 28
ForCIRS, anti-inflammatory
Dose50 mcg per metered intranasal spray, up to 4 sprays per day, no established SubQ human dose
HandleFragile · Highly fragile. Degrades within 24 to 48 hours at room temperature from peptidase cleavage at the N-terminus and methionine-17 oxidation. Store lyophilized at -20C. Reconstitute with bacteriostatic water at pH 7.0 to 7.4, swirl gently, never shake, minimize air exposure. Keep reconstituted nasal spray refrigerated at 2 to 8C and use within 30 days. Compounded nasal sprays are similarly short-dated.
PROMISING
B
Sci
C
Safe
Ipamorelin
NNC 26-0161, Ipamorelin acetate, "Ipa" (community shorthand); CAS 170851-70-4
ForSelective GH secretion
Dose200 to 300 mcg SubQ, 1 to 3x daily, fasted, pre-bed dose prioritized. Almost always paired with CJC-1295.
HandleModerate · Freely soluble in BAC water, no special solvent needed. Add water slowly down the vial wall, swirl gently, never shake. Refrigerate at 2 to 8 C, use within 3 to 4 weeks. Avoid heat excursions and do not re-freeze the reconstituted solution.
PROMISING
B
Sci
B
Safe
Sermorelin
Sermorelin acetate; GHRH(1-29); GRF(1-29); Geref; Geref Diagnostic
ForGH stimulation, sleep, recovery
Dose200 to 500 mcg SubQ nightly, fasted, timed to natural GH pulse before sleep.
HandleFragile · GHRH analog, degrades quickly once reconstituted. Add bacteriostatic water slowly down the vial wall, swirl gently, never shake or vortex. Refrigerate at 2 to 8 C immediately. Use within 21 to 28 days. A temperature excursion above 8 C for more than 2 hours can cause irreversible aggregation. Do not refreeze the reconstituted solution.
PROMISING
B
Sci
B
Safe
Selank (N-Acetyl Selank)
ForAnxiety relief, calm focus
Dose250 to 300 mcg intranasally, 1 to 3x daily in short cycles. SubQ reported but less common. No FDA-approved dose.
HandleModerate · Short plasma half-life makes intranasal prep sterility especially important. Add bacteriostatic water slowly down the vial wall, swirl gently, never shake. Refrigerate at 2 to 8 C after reconstitution and use within 28 days. Do not freeze reconstituted solution. Store lyophilized powder at -20 C. Protect from light and heat. Each draw from a multi-dose nasal vial carries contamination risk.
PROMISING
B
Sci
C
Safe
DSIP (Delta Sleep-Inducing Peptide)
Emideltide; DSIP; WAGGDASGE nonapeptide; Deltaran (Russian formulation)
ForSleep depth modulation
Dose100 to 500 mcg SubQ 30 to 60 minutes before bed. Original human trials used IV infusion at 25 nmol per kg. No validated SubQ dose.
HandleFragile · Fragile small peptide. Add bacteriostatic water gently down the vial wall, swirl, never shake. Keep lyophilized powder frozen at -20 C or below for long-term stability. Once reconstituted, refrigerate at 2 to 8 C and use within 3 to 4 weeks. Avoid freeze-thaw cycles. Degrades rapidly at room temperature in solution.
PROMISING
B
Sci
B
Safe
AOD-9604
AOD9604, Tyr-hGH(177-191), hGH fragment 176-191 analog, "anti-obesity drug 9604," Lipotropin fragment (marketing)
ForFat loss support
Dose250 to 500 mcg SubQ once daily, commonly in the morning. Some protocols cycle 5 days on, 2 off.
HandleModerate · Requires careful reconstitution: some batches need 0.6% acetic acid solution added first (2 to 3 drops) before bacteriostatic water because the peptide can underdissolve at neutral pH. Add liquid slowly down the vial wall, swirl gently, never shake. Refrigerate at 2 to 8 C once mixed, use within 28 to 45 days. Do not refreeze reconstituted solution.
PROMISING
B
Sci
B
Safe
Cagrilintide
Cagri, NNC0174-0833, AM833, "the amylin," component of CagriSema (with semaglutide)
ForAppetite suppression, weight loss
DoseStart 0.25 mg SubQ once weekly, titrate stepwise every 4 weeks to 2.4 mg/week. Common gray-market reconstitution: 5 mg vial in 2 mL bacteriostatic water.
HandleModerate · Lyophilized amylin analog. Let vial reach room temperature 10 to 15 minutes before opening. Add bacteriostatic water slowly down the vial wall, swirl gently, never shake. Refrigerate reconstituted solution at 2 to 8 C, protect from light, use within 28 to 30 days. Do not freeze the reconstituted solution. Discard if cloudy, discolored, or particulate.
PROMISING
B
Sci
C
Safe
Retatrutide
LY3437943; "triple G"; "Reta"; "the Godzilla peptide" (community); GGG tri-agonist
ForWeight loss, metabolic
Dose2 mg SubQ once weekly to start, titrated monthly toward 4 to 12 mg maintenance. Reported not prescribed. Slow titration required to manage GI effects.
HandleModerate · Sensitive to vigorous agitation, heat, and light. Add bacteriostatic or sterile water gently down the vial wall, swirl rather than shake. Refrigerate reconstituted solution at 2 to 8 C and use within 1 to 2 weeks. Do not freeze reconstituted solution. Store lyophilized powder at -20 C or colder. The larger practical risk is provenance: gray-market vials may be mislabeled, underdosed, or contaminated regardless of careful handling.
PROMISING
B
Sci
B
Safe
Survodutide
BI 456906 / EX-A7878 (Boehringer Ingelheim; originally co-developed with Zealand Pharma)
ForWeight loss, MASH/liver fat
Dose2.4 to 4.8 mg SubQ once weekly, titrated stepwise every 2 to 4 weeks from 0.6 mg. Trial sweet spot was 4.8 mg. No approved consumer protocol exists.
HandleModerate · No validated consumer product exists. By analogy to other albumin-bound GLP-1 class peptides: add bacteriostatic water slowly down the vial wall, swirl gently, never shake. Refrigerate reconstituted solution at 2 to 8 C, use within 28 days. Protect from heat, light, and agitation. Identity and purity of any gray-market vial are unverifiable.
PROMISING
B
Sci
C
Safe
Cerebrolysin
FPF 1070, Cerebrolysatum, porcine brain hydrolysate
ForStroke and TBI recovery
Dose5 to 10 mL IM daily for 10 to 20 days (community); clinical trials used 30 mL IV over 15 to 60 minutes in saline. No community oral route exists.
HandleModerate · Supplied as a ready-to-use aqueous solution in glass ampoules, no reconstitution required. Refrigerate at 2 to 8 C. Once an ampoule is opened, use within 4 hours at room temperature or 24 hours refrigerated, then discard. Gray-market cold-chain gaps are a real degradation risk.
PROMISING
B
Sci
C
Safe
Kisspeptin
KP-54, KP-10, KP-13, Metastin, KISS1 peptide
ForHPG axis, libido
Dose100 to 200 mcg SubQ once daily (wellness community report, KP-10). Clinical trials used kisspeptin-54 at much higher supervised doses. No established human wellness protocol.
HandleFragile · KP-10 is susceptible to N-terminal proteolysis and Trp residue oxidation. Use BAC water (not sterile saline), add slowly down the vial wall, swirl gently. Refrigerate at 2 to 8 C and use within 7 days of reconstitution. Minimize freeze-thaw cycles. Shorter shelf life than most GHRPs.
PROMISING
B
Sci
D
Safe
MK-677 (Ibutamoren)
Ibutamoren, MK-0677, L-163,191, Ibutamoren mesylate
ForGH and IGF-1 elevation
Dose10 to 25 mg oral once daily, typically at night before sleep. Not injected, no reconstitution required.
HandleRobust · Oral tablet or capsule, no reconstitution needed. Store away from heat, moisture, and light like any oral compound. Stability risk is purity of the research-chemical source, not handling fragility.
PROMISING
B
Sci
B
Safe
SS-31 (Elamipretide)
Elamipretide, MTP-131, Bendavia, FORZINITY (brand name for Barth syndrome)
ForMitochondrial support, energy
Dose3 to 5 mg SubQ daily or 5 days on/2 days off. Clinical trials used 40 mg/day IV in disease populations. Community dose is lower.
HandleFragile · High net positive charge makes it more stability-sensitive than most peptides. Store lyophilized powder frozen at minus 20 C. Reconstitute with bacteriostatic water, inject slowly down the vial wall, swirl gently. Refrigerate reconstituted solution at 2 to 8 C, use within 14 to 28 days. Do not freeze once reconstituted, ice crystals destroy peptide structure. Protect from light at all stages.
EARLY
C
Sci
C
Safe
BPC-157
Body Protection Compound-157
ForGut and tendon repair
Dose250 to 500 mcg SubQ once or twice daily near injury site, in 4 to 12 week cycles. 500 mcg to 1 mg orally for gut goals.
HandleModerate · Standard lyophilized peptide handling. Add bacteriostatic water slowly down the vial wall, swirl gently, never shake. Refrigerate reconstituted solution at 2 to 8 C. Use within 28 days. Replace bacteriostatic water every 28 days. Do not freeze reconstituted vials. Keep away from light and heat.
EARLY
C
Sci
B
Safe
GHK-Cu
Copper tripeptide-1
ForSkin and hair repair
Dose1 to 2 mg SubQ daily to several times weekly (injectable, where legal). Topical: 1 to 3% serum daily, well-supported route.
HandleModerate · Copper ions add mild oxidation risk beyond standard peptides. Add BAC water slowly down the vial wall, swirl gently, never shake, refrigerate at 2 to 8 C, use within 28 to 30 days. Do not freeze the reconstituted solution.
EARLY
C
Sci
D
Safe
LL-37 (cathelicidin)
hCAP-18 / CAP-18 C-terminal fragment, cathelicidin antimicrobial peptide (CAMP gene product)
ForAntimicrobial immune support
Dose100 to 300 mcg SubQ daily, 5 days on, 4 to 6 week course, titrate from 100 mcg. No controlled human SubQ trial exists.
HandleModerate · Add bacteriostatic water gently, swirl or roll the vial, never shake. Refrigerate at 2 to 8 C, use within 4 to 6 weeks. Susceptible to proteolytic degradation and rapid loss at room temperature.
EARLY
C
Sci
C
Safe
Semax (N-Acetyl Semax)
ForCognitive focus, neuroprotection
Dose200 to 600 mcg intranasally daily, divided AM and midday. SubQ protocols also reported at similar microgram ranges.
HandleModerate · Reconstitute with isotonic sterile saline for intranasal use (not bacteriostatic water, benzyl alcohol irritates nasal mucosa). Add liquid gently, swirl, never shake. Refrigerate reconstituted solution at 2 to 8 C, use within 28 to 30 days, protect from light and heat. Lyophilized powder stable up to 12 months refrigerated.
EARLY
C
Sci
D
Safe
Melanotan II
MT-II, MT-2, Melanotan 2, "tan jab", "Barbie drug"; cyclic [Nle4, D-Phe7]-α-MSH(4-10) analog
ForTanning, libido, appetite
Dose0.25 to 0.5 mg SubQ daily or every other day during loading, then 0.25 mg maintenance 1 to 2x weekly. Start low to blunt nausea.
HandleModerate · Add bacteriostatic water slowly down the vial wall, swirl gently, never shake. Refrigerate at 2 to 8 C, use within 30 to 45 days. Cyclic structure is more stable than linear MSH analogs but temperature excursions above 8 C cause irreversible loss of receptor affinity.
EARLY
C
Sci
C
Safe
NAD+ (injectable)
NAD, Nicotinamide Adenine Dinucleotide (IV/IM/SubQ), "NAD+ therapy", "NAD drip"
ForEnergy, cellular repair
DoseIV: 250 to 750 mg infused over 1 to 4+ hours, slow rate required. SubQ: 20 to 100 mg, 2 to 3x per week. IM: 50 to 200 mg, 1 to 3x per week. No established optimal protocol.
HandleModerate · Moisture and heat sensitive. Keep lyophilized powder refrigerated and protected from light. Reconstitute with sterile or bacteriostatic water, swirl gently. Use reconstituted solution within 14 to 30 days refrigerated. Do not shake or expose to temperature excursions. Sterility is paramount for an injectable; compounding source quality determines product safety.
EARLY
C
Sci
C
Safe
GHRP-2
Growth Hormone Releasing Peptide-2, Pralmorelin, KP-102, GHRP-2 Acetate
ForGH pulse stimulation
Dose100 to 300 mcg SubQ, 2 to 3x daily, fasted. Pre-workout and pre-bed windows most common.
HandleModerate · Standard GHRP handling. Reconstitute with BAC water, aim stream down the vial wall, swirl gently. Refrigerate at 2 to 8 C, use within approximately 30 days. Avoid heat and repeated freeze-thaw. D-amino acids in the structure confer some enzymatic resistance.
EARLY
C
Sci
C
Safe
GHRP-6
Growth Hormone-Releasing Peptide 6, His-D-Trp-Ala-Trp-D-Phe-Lys-NH2
ForGH pulse, appetite drive
Dose100 mcg SubQ, 1 to 3x daily, fasted. Up to 300 mcg per injection in some protocols. Often paired with a GHRH analog.
HandleModerate · Among the more stable GHRPs. Reconstitute with BAC water down the vial wall, swirl, never shake. Refrigerate at 2 to 8 C and use within 28 days. Sensitive to heat and repeated freeze-thaw cycles.
EARLY
C
Sci
D
Safe
Hexarelin
Examorelin; GHRP-His-D-2-MeTrp-Ala-Trp-D-Phe-Lys-NH2; EP-23905
ForStrong GH pulse release
Dose100 to 200 mcg SubQ, 1 to 3x daily, fasted. Often cycled 5 days on, 2 days off to slow tachyphylaxis.
HandleModerate · Standard GHRP reconstitution. Reconstitute with BAC water slowly down the vial wall, swirl gently. Refrigerate at 2 to 8 C, use within approximately 4 weeks. Light and heat sensitive. Avoid freeze-thaw cycles after reconstitution.
THIN
D
Sci
D
Safe
TB-500
Thymosin Beta-4 fragment
ForTissue repair, recovery
Dose750 mcg to 2 mg SubQ twice weekly for 4 to 6 weeks loading, then 750 mcg to 1 mg twice monthly maintenance
HandleModerate · Standard handling. Add bacteriostatic water down the vial wall, swirl gently, never shake. Store lyophilized at -20C long-term, refrigerate reconstituted at 2 to 8C, use within about 30 days. Protect from light and heat. No unusual fragility compared with most peptide fragments.
THIN
D
Sci
D
Safe
MOTS-c
Mitochondrial-derived peptide
ForMetabolic health, exercise mimetic
Dose5 to 10 mg SubQ, 3 to 5x per week. No established clinical dose. First human trial ongoing as of 2026.
HandleModerate · Add bacteriostatic water gently, swirl to dissolve, never shake. Refrigerate at 2 to 8 C, use within 2 to 3 weeks for best potency. Do not freeze reconstituted solution. Humidity and oxidation accelerate degradation.
THIN
D
Sci
C
Safe
KPV (Lysine-Proline-Valine)
KPV tripeptide; Lys-Pro-Val; α-MSH(11-13); alpha-MSH C-terminal tripeptide
ForGut inflammation relief
Dose250 to 500 mcg SubQ or oral daily, cycles of 4 to 8 weeks, no human trial dose established
HandleModerate · Add bacteriostatic water slowly down the vial wall, swirl gently, never shake. Refrigerate at 2 to 8 C, use within about 4 weeks. Avoid heat and freeze-thaw cycles.
THIN
D
Sci
D
Safe
Pentadeca Arginate (PDA)
PDA, Pentadecapeptide Arginate, BPC-157 Arginate, Arginate salt of BPC-157, "PDA peptide"
ForGut and tendon repair
Dose250 to 500 mcg SubQ once daily in 10 to 20 day cycles. No validated human dose exists.
HandleModerate · Standard lyophilized peptide handling. Add bacteriostatic water slowly down the vial wall, swirl gently, do not shake. Refrigerate at 2 to 8 C once reconstituted, use within about 4 weeks. Store unreconstituted powder frozen at -20 C for long-term. Protect from heat and light. Arginate salt is marketed as more stable than acetate, though no published head-to-head data confirms this.
THIN
D
Sci
D
Safe
Cartalax (AED, Ala-Glu-Asp cartilage peptide bioregulator)
ForJoint and cartilage support
Dose100 to 200 mcg SubQ daily for 10 to 20 consecutive days, repeated quarterly. No validated human dose exists. Wide inconsistency across vendor sources.
HandleModerate · Fairly standard short-peptide handling. Add bacteriostatic water slowly down the vial wall, swirl gently, never shake. Store lyophilized at -20 C long-term or 2 to 8 C short-term. Refrigerate once reconstituted, use within 28 to 30 days, avoid freeze-thaw cycles.
THIN
D
Sci
C
Safe
CJC-1295 (no-DAC / Modified GRF 1-29)
Mod GRF 1-29, Modified GRF (1-29), CJC-1295 without DAC, tetrasubstituted GRF(1-29), "CJC-1295 DAC-less"
ForGH pulse stimulation
Dose100 mcg SubQ per injection, 1 to 3 times daily in fasted windows. Almost always stacked with ipamorelin. No validated human dose for the no-DAC form.
HandleFragile · Fragile once reconstituted. Add bacteriostatic water slowly down the vial wall, swirl gently, never shake or vortex. Refrigerate immediately after mixing at 2 to 8 C, use within 28 to 40 days. Methionine oxidation and asparagine deamidation accelerate sharply above refrigerator temperature. Store lyophilized at -20 C long-term.
THIN
D
Sci
C
Safe
Epitalon (Epithalon)
Epithalon, Epithalone, AEDG peptide, Ala-Glu-Asp-Gly, synthetic analog of Epithalamin (pineal extract)
ForLongevity and sleep cycling
Dose5 to 10 mg SubQ daily for 10 to 20 consecutive days, once or twice per year. No validated human dose.
HandleRobust · Fairly robust small tetrapeptide, stable across a wide pH range (3 to 10) and reconstitutes easily in bacteriostatic water. Store lyophilized at -20 C. Once reconstituted, refrigerate at 2 to 8 C and use within 28 days. Do not freeze the reconstituted solution. Swirl gently to dissolve, avoid shaking.
THIN
D
Sci
D
Safe
5-Amino-1MQ
5-Amino-1-methylquinolinium; 5-Amino-1MQ iodide; NNMT inhibitor (lead methylquinolinium analog)
ForMetabolic fat loss
Dose50 mg orally daily, sometimes 100 to 150 mg split, in roughly 8-week cycles. No established human dose.
HandleRobust · Small molecule, not a true peptide. Fairly stable. Store powder frozen at around -20 C, let vial reach room temperature before opening, swirl gently in bacteriostatic water down the vial wall, never shake. Refrigerate solution at 2 to 8 C protected from light, use within 2 to 4 weeks. Do not refreeze the reconstituted solution.
THIN
D
Sci
B
Safe
SNAP-8 (Acetyl Octapeptide-3)
Acetyl Octapeptide-3, SNAP-8, Ac-EEMQRRAD-NH2, "topical Botox" peptide
ForExpression line softening (topical)
Dose3 to 10 percent w/w in finished serum or cream, applied twice daily to expression-line zones. Not injected.
HandleRobust · Topical cosmetic only, not reconstituted for injection. Water-soluble powder dissolves into a serum base below 40 C. Pre-made solutions need no mixing. Reconstituted aqueous solution degrades within 28 days even refrigerated, peptide activity drops 15 to 30 percent in 14 days. Store finished serum at 2 to 8 C, protect from light. The methionine residue is oxidation-prone, use a chelating agent or preservative in DIY formulas.
THIN
D
Sci
C
Safe
Pinealon
EDR peptide, Glu-Asp-Arg, EDR tripeptide, Pinealon-6
ForNeuroprotection, cognition
Dose5 to 10 mg SubQ once daily in short cycles of 10 days, reported not prescribed. No established human protocol.
HandleModerate · Standard short-peptide handling. Add bacteriostatic water slowly down the vial wall, swirl gently, never shake. Refrigerate reconstituted solution at 2 to 8 C and use within 28 days. Store lyophilized powder frozen at -20 C in dry, dark conditions. Sensitive to heat and repeated freeze-thaw. Discard if solution turns cloudy or shows particulate.
THIN
D
Sci
C
Safe
Thymulin
Facteur Thymique Serique (FTS), Serum Thymic Factor, Zinc-Thymulin
ForImmune support, hair loss
Dose2 mg SubQ daily for 20 days, cycled 2 to 3 times per year, no validated human dose exists
HandleModerate · Zinc-metallopeptide, zinc must stay bound for activity. Add bacteriostatic water gently, swirl, do not shake. Refrigerate reconstituted at 2 to 8C, use within 28 days, some sources advise within 5 to 7 days to be conservative. Do not freeze reconstituted solution, freeze-thaw cycles can aggregate the peptide and cut bioactivity by 30 to 50 percent. Stability data specific to thymulin is limited.
UNPROVEN
E
Sci
B
Safe
AHK-Cu (Copper Tripeptide-3)
Copper Tripeptide-3; Ala-His-Lys-Cu; L-alanyl-L-histidyl-L-lysine copper(II); AHK copper peptide
ForHair follicle support
DoseNo established human dose. Typically 0.05% in topical serum applied to scalp once or twice daily, leave-in. No injection protocol exists.
HandleModerate · Copper chelation is vulnerable to oxidation, pH extremes, and high vitamin C or acid actives that can break the copper-peptide bond. If using raw powder, reconstitute in sterile water down the vial wall, swirl gently, refrigerate at 2 to 8 C. Use within 28 days. Do not freeze the reconstituted solution. Keep finished serums cool and dark.
UNPROVEN
E
Sci
E
Safe
Dihexa
PNB-0408, N-hexanoic-Tyr-Ile-(6) aminohexanoic amide, Angiotensin IV analog
ForExperimental cognitive enhancement
Dose5 to 30 mg orally or sublingually per day (community only). No human clinical dose exists. Foundational mechanism papers retracted 2025.
HandleModerate · Not a standard water-reconstituted peptide. Poor aqueous solubility means most community protocols dissolve it in DMSO, ethanol, or PEG-400, not bacteriostatic water. Store as powder at -20 C. Confirm full dissolution in chosen vehicle before use. Gray-market capsule or powder identity is unverified.