Weight Loss & Metabolic 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.

Yale Study: Semaglutide Needs Hunger Neurons for Fat Loss

A PNAS study found semaglutide switches ON AgRP hunger neurons — and disrupting them blunts fat loss. Why returning appetite isn't the same as failure.

Retatrutide Early Access: Who Actually Qualifies

Lilly opened retatrutide early access before FDA approval. Four criteria gate it, three parties sign off — and why almost nobody gets through.

GLP-1s and Birth Control: What the Labels Require

Tirzepatide cut oral contraceptive exposure 20%; semaglutide showed none. New Aug 2026 consensus guidelines. Which compounds carry the warning.

GLP-1s and PMOS (PCOS): What the Trial Data Shows

A semaglutide analysis in PMOS — the condition formerly called PCOS — reported 52% lower testosterone and more regular cycles. What the data shows.

Is Retatrutide a Biologic? The FDA Fight Explained

A court sent FDA back to the drawing board on retatrutide's classification. The 41st amino acid decides whether it can ever be compounded.

Retatrutide Precio: Dónde Comprar y Comparar

Compara el precio de retatrutide por mg entre proveedores: desde $45.50 el vial. Nura es el más barato en 10mg y 30mg. Tallas de vial, COA y coste por semana.

Dosis de Retatrutide: Tabla, Unidades y Titulación

Tabla completa de dosis de retatrutide con conversión exacta de mg a unidades — 0,25 mg, 0,5 mg y 1 mg desde un vial de 10 mg — más dosis iniciales de la comunidad.

Where to Buy Retatrutide: Price & Vendor Guide

One vendor sells 60mg vials at half the per-mg cost of 12mg — but COA matters more than price. Vial sizes, cost per week, and vendor scores.

Orforglipron Dosing: 0.8mg Oral Titration

The label starts orforglipron at 0.8mg once daily and steps up monthly to 17.2mg -- but Phase 3 trials used 6, 12 and 36mg. How the oral GLP-1 is dosed.

Buy Orforglipron: Price, COA & Cost Per Week

Only 1 vetted Orforglipron source right now: $198.95 a vial, $33.16/mg. Codes save up to 10%. COA status and real cost per week.

Retatrutide Cycle Protocol: Length, Taper, Off-Cycle

Community sources cluster around 8-on / 8-off. Covers cycle length, week-by-week titration, tapering, off-cycle reports, and restart protocols.

Switching Tirzepatide to Retatrutide: Dose & Washout

How long tirzepatide takes to clear, what retatrutide dose trials started at, and what weeks 1-8 look like. Trial data plus community-reported protocols.

Retatrutide vs Tirzepatide: What the Trials Show

Retatrutide hit 24% weight loss vs tirzepatide's 22.5% — but it also raises heart rate more, and the glucagon receptor is why. What the data shows.

What Is Orforglipron (Foundayo)? Oral GLP-1 Pill

Orforglipron is the first oral GLP-1 pill, FDA-approved as Foundayo in 2026. How the once-daily tablet works, and why its weight loss trails injections.

Orforglipron: From Phase 1 Trials to FDA Approval

How orforglipron went from a 2023 Phase 1 readout to FDA approval as Foundayo — and why its ~12% weight loss trails injectable rivals.

What Doctors Think About Peptides: New Survey Data

48% of physicians say patients disclosed peptide use last year — and 84% got their information from influencers, not doctors. The full survey data.

What Is Bioglutide (NA-931)? Oral GLP-4 Agonist

Bioglutide (NA-931): the oral quadruple agonist adding IGF-1 to retatrutide's targets. What the ADA 2025 trial data reported, and the accessible analog.

Bioglutide (NA-931) Phase 2: 13.8% Oral Weight Loss

The Phase 2 trial reported oral quadruple agonist NA-931 hit 13.8% weight loss with no muscle loss. How it stacks up to retatrutide.

Quintuple Agonist Beats Retatrutide in Rats: VRX-0075

A 5-receptor obesity peptide, VRX-0075, beat retatrutide for weight loss in obese rats at ADA 2026. What the data means and what you can buy now.

Orforglipron vs Tirzepatide: Pill or Shot?

Orforglipron is a daily pill, tirzepatide a weekly shot — but trials show the injection lost nearly twice the weight. The honest tradeoff, side by side.

Orforglipron vs Retatrutide: Pill vs Injection

One's an FDA-approved pill; the other an injectable that hit 24% in trials. Oral scale vs peak power — the honest cross-trial comparison.

GLP-4 vs GLP-5: Bioglutide vs VRX-0075

Bioglutide (GLP-4) adds muscle-sparing IGF-1 and has oral human data; VRX-0075 (GLP-5) adds amylin for deeper loss but is rat-only. Full comparison.

Bioglutide vs Retatrutide: Oral Quad vs Injectable

Bioglutide (NA-931) is an oral quadruple agonist; retatrutide an injectable triple. How the two obesity compounds actually compare in 2026.

SLU-PP-332 vs MOTS-c: Two Exercise Mimetics

Synthetic ERR pan-agonist vs mitochondria-encoded AMPK activator. Same goal, opposite philosophies, and the stack rationale that ties them.

Cagri+Tirz vs Cagri+Sema: Amylin Pairing Choice

REDEFINE 1 hit 22.7% with cagrilintide + semaglutide. Cagrilintide + tirzepatide has stronger GIP. Mechanistic case, trial data, and the open question.

Where to Buy Bioglutide (NA-931): 2026 Status

Bioglutide (NA-931) isn't for sale yet — it's still in trials. See the real 2026 availability, why current listings aren't legit, and get launch alerts.

Buy L-Carnitine: Compare 2 Vendors, From $40

Compare 2 L-Carnitine vendors side by side: from $40 a vial, best value $0.01/mg. Codes save up to 15%. Vial sizes, COA status, real cost per week.

Buy Vitamin B12: Price, COA & Cost Per Week

Only 1 vetted Vitamin B12 source right now: $35 a vial, $3.50/mg. Codes save up to 15%. COA status and real cost per week.

Buy Survodutide: Price, COA & Cost Per Week

Only 1 vetted Survodutide source right now: $78 a vial, $7.80/mg. Codes save up to 10%. COA status and real cost per week.

Buy Cagrilintide: Compare 4 Vendors, From $44

Cagrilintide is the priciest weight-loss peptide per mg — so a vendor markup stings more here. The 10mg vial vs 5mg on cost, 4 vendors scored.

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.

Bioglutide (NA-931) Trial Results Timeline

Bioglutide (NA-931) trials reported up to 13.8% weight loss by week 13. How the oral quadruple agonist's results built across Phase 1 and Phase 2.

L-Carnitine Results Timeline: What to Expect

L-carnitine works on muscle stores, not blood levels — which is why recovery and fatigue effects take weeks, not days. Here's the documented timeline.

Vitamin B12 Results: Deficiency Timeline

Energy can shift in days, blood counts take weeks, nerves take months — and if you're not deficient, B12 does nothing. The honest timeline.

Tesofensine Results: Week-by-Week Timeline

Appetite suppression in days, weight loss over months. What the Phase 2 trial documented week 1 through month 6 at 0.5mg/day oral.

Survodutide Results: Week-by-Week Timeline

Appetite drops in week 1, but the 18.7% weight-loss figure took 46 weeks of titration. Full trial-reported timeline by phase and use case.

Liraglutide Results: Week-by-Week Timeline

Appetite shifts in week 1, but trial weight loss took 56 weeks. The full daily-injection timeline by phase, grounded in the SCALE trial data.

Bioglutide (NA-931) Dosage: What Trials Used

Bioglutide (NA-931) is oral, not injected. See the exact dose the Phase 2 trial used for 13.8% weight loss — and why no research-use protocol exists yet.

L-Carnitine Dosage: 500-2000 mg Protocols

Why oral L-carnitine is only ~15% absorbed, how injectable 500 mg/mL forms bypass that, and the 500-2000 mg/day ranges used across the clinical literature.

Vitamin B12 Dosage: 1000 mcg IM & Oral Protocols

The established deficiency dose is 1000 mcg. See why high-dose oral B12 matches injections, plus loading-vs-maintenance schedules and form differences.

Bioglutide (NA-931) Benefits: Oral, No Muscle Loss

Bioglutide (NA-931) is oral, once-daily. Phase 2 subjects on 150mg/day averaged 13.8% weight loss with no muscle loss reported. What the trial data shows.

L-Carnitine Benefits: Faster Recovery, Less Fatigue

The strongest L-carnitine evidence is exercise recovery and fatigue — not fat burning. See what trials actually show, including the modest weight effect.

Vitamin B12 for Nerve & Blood Health

The energy boost everyone cites is B12's weakest-evidenced benefit. What clinical trials actually show — anemia, nerves, homocysteine, cognition.

SLU-PP-332: Mice Lost 12% Body Weight in 30 Days

DIO mice on SLU-PP-332 ran 70% longer and gained 10x less fat than controls. What ERR pan-agonism does, plus the asterisks behind the data.

Retatrutide + Cagrilintide Benefits: 4 Pathways

GLP-1, GIP, glucagon, plus amylin — four metabolic axes in one stack. What the per-component trial data implies about combined effect.

Tirzepatide: 22.5% Weight Loss + Liver Fat

Weight loss gets the headlines, but tirzepatide's liver fat data may matter more. 8 research-backed effects with cited studies.

L-Carnitine Side Effects: What's Real

L-carnitine is well tolerated — but GI upset, a fishy body odor, and a debated TMAO–heart-risk signal are worth understanding before you buy.

Vitamin B12 Side Effects: What's Real

Vitamin B12 is one of the safest supplements there is — but injection reactions, acne flares, and a scary-sounding cancer signal are worth understanding.

5-Amino-1MQ Side Effects: What Research Shows

Animal models report clean safety. Community data adds mild GI and transient fatigue. Full breakdown of investigational dataset.

SLU-PP-332 Side Effects: Zero Human Data, Mouse Signals

No human Phase 1, no incidence rates. What the mouse studies and ERR receptor expression actually predict — cardiac, hepatic, and the unknown long tail.

RetaCagri Side Effects: GI Burden + Dysesthesia

Both compounds slow gastric emptying via different pathways — combined nausea is the rate-limiter. Plus retatrutide's dysesthesia signal ≥9mg.

Tirzepatide Side Effects: 29% Nausea, When It Stops

29% of users get nausea at max dose — most resolves by week 4. Full safety breakdown: GI side effects, gastroparesis, thyroid flags, when to stop.

Retatrutide vs Semaglutide: Triple vs Single Agonist

Phase 2 trials reported 24.2% weight loss for retatrutide vs 14.9% for semaglutide in STEP 1 — but only one is FDA-approved. Full side-by-side.

Liraglutide vs Semaglutide: 2.5x Weight Loss Gap

STEP 8 head-to-head: 15.8% vs 6.4% weight loss. Side-by-side dosing, side effects, and cost — and which one to actually pick.

Cagrilintide vs Semaglutide: Different Paths

They target different receptors entirely — and combining them produces 22.7% weight loss. Mechanism, efficacy, and when to use each.

SLU-PP-332 + Retatrutide Stack: Eat Less, Burn More

Triple-agonist appetite suppression + ERR pan-agonist mitochondrial output. Why community references frame it as the cleanest mechanistic pair.

SLU-PP-332 Bloodwork: 7 Labs Researchers Track

Lactate may be the marker that tells you if ERR pan-agonism is doing anything. Cardiac, metabolic, and liver labs published preclinical work tracked.

Tirzepatide Bloodwork: 7 Labs to Track

Most skip calcitonin — the one marker that catches the rarest but most serious risk. 7 essential labs with optimal ranges and testing schedule.

Survodutide Bloodwork: 8 Labs to Track

Liver enzymes are the one most skip — and shouldn't with a glucagon agonist. 8 essential labs with optimal ranges and testing schedule.

5-Amino-1MQ Bloodwork: 8 Labs to Track

Most skip the insulin marker that shows if 5-amino-1MQ is working. 8 essential labs with optimal ranges, testing schedule, and what results mean.

$30 vs $300 Semaglutide: Where the Money Goes

Same Chinese factories, 10x price gap. We break down every dollar of compounded GLP-1 markup — what's real safety value vs telehealth marketing.