Growth & Repair Peptides

HM17321: Roche's $2.3B Muscle-Sparing Obesity Peptide

Roche paid $190M upfront for HM17321, a urocortin-2 analog that raised lean mass while cutting fat in monkeys. What it changes for GLP-1 users now.

Hims Peptide Launch: What Ships, What Waits on FDA

Hims & Hers will sell sermorelin, glutathione and NAD+ by year-end. BPC-157 and five more wait on FDA rulemaking — the timeline, and where they sell now.

BELIEVE Trial: GLP-1 Combo Keeps 92% Fat Loss

Bimagrumab plus semaglutide hit 22.1% weight loss with 92.8% from fat in the BELIEVE trial. What it means for muscle-preserving peptide stacks.

Peptides vs SARMs vs Steroids: Muscle Comparison

Peptides are safer. SARMs are stronger. Steroids are strongest. Legal, safety, cost trade-offs for muscle goals.

Peptides for Strength vs Mass: Which Goal Wins

IGF-1 for site-specific strength. GHRH+GHRP for systemic mass. Picking the right compound for powerlifting vs bodybuilding.

Best Peptides for Sleep: 4 Options Ranked

Ranking of the peptides people use for sleep — what each one does, who it suits, and what users actually report.

CJC-1295 No DAC: Pulsatile GH, GHRP Synergy

The short-acting GHRH analog trades weekly convenience for a more natural GH pulse — and near-mandatory GHRP pairing. What that changes, by evidence.

Tesamorelin: -18% Visceral Fat (Phase III)

Phase III hit -18% visceral fat, but the cognitive and IGF-1 effects surprise long-term users. 6 research-backed effects with cited studies.

Sermorelin: Restart Your Pituitary GH Output

The strongest sermorelin benefit isn't anti-aging — it's GH restoration. 6 research-backed effects with cited studies and dosing context.

MK-677: 50% Deeper Sleep + Oral GH Release

Most people take MK-677 for muscle — but its strongest clinical data is for sleep. 7 research-backed benefits ranked by evidence quality.

Ipamorelin: Clean GH Pulses, Zero Cortisol

The cleanest GHRP has benefits beyond muscle — one surprised researchers. 6 research-backed effects with evidence ratings and cited studies.

IGF-1 LR3: 2-3x Potency, 20-Hour Half-Life

IGF-1 LR3 is not regular IGF-1 — reduced binding protein affinity changes everything. 5 research-backed effects with evidence quality ratings.

Tesamorelin Research: 5 RCTs Pooled, No BMI Drop

Pooled RCT data: -27.7 cm² visceral fat, -4.3% liver fat, +1.4 kg lean mass, and no change in BMI or subcutaneous fat. What tesamorelin actually moved.

What Is MGF (Mechano Growth Factor)? IGF-1 Splice Variant

MGF is a locally-acting IGF-1 splice variant. The gene-level science is real; the injected-peptide muscle-building claims stay unproven in humans.

MGF vs PEG-MGF: Half-Life, Evidence & Safety

PEG-MGF claims a 48-72h half-life vs native MGF's minutes. But a 2014 replication found the E-peptide did nothing to muscle cells.

Ipamorelin vs GHRP-2 vs GHRP-6 Ranked

Ipamorelin is cleanest, GHRP-2 is strongest, GHRP-6 boosts appetite. Three GH peptides ranked by goal.

GHRH vs GHRP: Different Receptors Guide

They both boost GH but through completely different pathways. Mechanisms, stacking logic, and which to use when.

CJC-1295 DAC vs No DAC: Which to Choose

8-day half-life vs 30 minutes — that one difference changes dosing, GH pattern, cost, and results. Side-by-side breakdown.

CJC-1295 vs Sermorelin: One Clear Winner

Half-life is the key difference — and it changes everything about dosing. Side-by-side on GH release, cost, and cycling.

CJC-1295 DAC Results: Week-by-Week Timeline

One injection elevates IGF-1 for over a week — but body composition lags. What the clinical data and community reports show, stage by stage.

IGF-1 LR3 Results: Week-by-Week Timeline

10 days on, 4 weeks off — but the IGF-1 elevation runs longer than the dosing window. What community reports and animal data show at each stage.

Tesamorelin Results: Week-by-Week Timeline

Most visible changes start at week 8 — but GH levels shift in days. Full tesamorelin timeline from first injection to 6 months.

Sermorelin Results: Week-by-Week Timeline

IGF-1 rises in 2 weeks, but body composition takes 8-12. Here's exactly when each sermorelin effect kicks in, backed by clinical data.

MK-677 Results: Week-by-Week Timeline

Appetite and sleep changes hit in days — body composition takes months. Here's exactly what to expect at each stage of an MK-677 cycle.

Ipamorelin Results: Week-by-Week Timeline

Sleep improves in days, body composition takes 6-8 weeks. Here's what ipamorelin actually does at each stage — and what determines your results.

Tesamorelin Side Effects: HIV Trial Data Breakdown

Injection-site reactions hit 25% in Phase 3. Joint pain and elevated IGF-1 follow. Full FDA-label safety breakdown.

Sermorelin Side Effects: Trial Data Breakdown

Injection-site reactions and brief flushing lead. Carpal-tunnel pattern and water retention follow. Full safety breakdown.

CJC-1295 Side Effects: Phase 2 Trial Data Breakdown

Injection-site reactions lead. Flushing and fluid retention cluster in community reports. Full safety breakdown.

CJC-1295 DAC Side Effects: Sustained GH Risks

Albumin binding extends half-life to 5-8 days. Water retention, hand tingling, and IGF-1 elevation cluster. Full breakdown.

Buy Tesamorelin + Ipamorelin: Compare 4 Vendors

Compare 4 Tesamorelin + Ipamorelin vendors: from $88 a vial, best value $6.77/mg. Codes save up to 30%. Vial sizes, COA status, cost per week.

Buy MK-677 (Ibutamoren): Price, COA & Cost Per Week

Only 1 vetted MK-677 (Ibutamoren) source right now: $69.95 a vial, $7.00/mg. Codes save up to 10%. COA status and real cost per week.

Buy Ipamorelin: Compare 5 Vendors, From $35

Compare 5 Ipamorelin vendors side by side: from $35 a vial, best value $4.20/mg. Codes save up to 50%. Vial sizes, COA status, real cost per week.

Buy Hexarelin: Price, COA & Cost Per Week

Only 1 vetted Hexarelin source right now: $21.56 a vial, $10.78/mg. Codes save up to 10%. COA status and real cost per week.

Buy GHRP-6: Compare 2 Vendors, From $19.95

Compare 2 GHRP-6 vendors side by side: from $19.95 a vial, best value $3.99/mg. Codes save up to 15%. Vial sizes, COA status, real cost per week.

Buy GHRP-2: Price, COA & Cost Per Week

Only 1 vetted GHRP-2 source right now: $19.95 a vial, $3.99/mg. Codes save up to 10%. COA status and real cost per week.

Tesamorelin Reconstitution: 2mg + 2mL Chart

Full vial = one dose at standard concentration. Step-by-step tesamorelin mixing with dilution chart, syringe math, and storage.

Tesamorelin Bloodwork: 7 Labs to Track

Most skip IGF-1 — the one marker that tells you if tesamorelin is actually working. 7 essential labs with optimal ranges and testing cadence.

Buy IGF-1 LR3: Compare 3 Vendors, From $59.96

Compare 3 IGF-1 LR3 vendors side by side: from $59.96 a vial, best value $59.96/mg. Codes save up to 30%. Vial sizes, COA status, real cost per week.

Peptide Stacks Under $200/Month

4 complete peptide protocols under $200/month — fat loss, healing, anti-aging, sleep. Per-peptide cost math, vendor picks, and which vial to buy.

Follistatin-344 Dosage: 50mcg Pre-Workout Protocol

Training-day-only dosing at 50mcg IM 30min before lifting. Covers reconstitution from 1mg vials, 8-week cycling, and stacking.

CJC-1295 DAC Dosage Chart: 2mg Twice Weekly

The 8-day half-life changes everything about injection timing. Covers 1-4mg protocols, IGF-1 monitoring, and GHRP stacking.