Last reviewed: September 2026 · By Noki Labs Team
Educational only. Everything Noki Labs sells is a research-grade peptide for personal wellness. Decisions about your weight belong with you and a licensed Philippine physician.
TL;DR
The best peptides for weight loss, ranked by the strength of published human evidence, are tirzepatide first, retatrutide second, cagrilintide third, then AOD-9604 and MOTS-c as supporting molecules with much weaker weight data. Tirzepatide produced 20.9 percent mean weight reduction over 72 weeks in Phase 3; retatrutide reached 24.2 percent in Phase 2 but has less safety history; cagrilintide alone gave 10.8 percent over 26 weeks. Noki Labs prices run from PHP 1,680 for MOTS-c to PHP 4,200 for tirzepatide 50 mg.
How this ranking was built
Every list of fat loss peptides online ranks by hype. This one ranks by three things you can check: the size and phase of the human trials, the mean weight reduction those trials reported against placebo, and how long people have been followed for safety. Price and who the molecule suits come after, because a cheaper peptide with no evidence is not a bargain. Every figure below links to the trial it came from, and every price is the Noki Labs price in September 2026.
Decision table: peptides for weight loss compared
| Rank | Molecule | Goal it serves | Evidence strength | Noki Labs price | Who it suits |
|---|---|---|---|---|---|
| 1 | Tirzepatide | Large, sustained weight reduction through appetite and insulin signalling | Phase 3, thousands of participants, 72-week data, approved abroad under brand names | PHP 2,400 (15 mg) to 4,200 (50 mg) | Most first-time users with 10 kg or more to lose |
| 2 | Retatrutide | Maximum weight reduction with an energy-expenditure effect | Phase 2 published; first Phase 3 topline reported; no approval yet | PHP 3,000 (10 mg), 3,840 (20 mg) | Experienced users under supervision who plateaued on a GLP-1 |
| 3 | Cagrilintide | Moderate weight reduction via the amylin pathway; strong as a partner molecule | Phase 2 alone; Phase 3 in combination with semaglutide | PHP 2,640 (10 mg) | People who cannot tolerate GLP-1 nausea, or stacking under supervision |
| 4 | AOD-9604 | Fat release without appetite suppression | Six human trials; safe; small effect versus placebo | PHP 1,800 (2 mg) | Athletes cutting while still eating to train |
| 5 | MOTS-c | Muscle fuel use and exercise capacity, not weight loss directly | Animal studies; no human weight trial | PHP 1,680 (10 mg) | People protecting training performance during a diet |
Semaglutide, sold abroad as Ozempic and Wegovy (named here only as branded comparators), would sit between tirzepatide and cagrilintide with 14.9 percent at 68 weeks in STEP 1. Noki Labs does not stock it; the Ozempic and Wegovy in the Philippines article covers local access and pricing.
1. Tirzepatide: the benchmark
Tirzepatide activates both GIP and GLP-1 receptors once a week. In SURMOUNT-1, adults with obesity lost a mean of 20.9 percent of body weight at 15 mg over 72 weeks against 3.1 percent on placebo, and in SURPASS-2 it beat semaglutide 1 mg on both blood sugar and weight in people with type 2 diabetes. Titration runs from 2.5 mg weekly up to 15 mg in 2.5 mg steps held for about four weeks each. The evidence depth is why it ranks first even though retatrutide's raw number is higher. The tirzepatide Philippines guide covers dosing, side effects, and where it fits with local clinics; a 15 mg vial at PHP 2,400 covers the first six weeks of the trial schedule.
2. Retatrutide: the largest numbers, the shortest track record
The triple agonist adds glucagon receptor activation to GIP and GLP-1, which raises energy expenditure rather than only lowering intake. The Phase 2 trial reported 24.2 percent mean weight reduction at 12 mg over 48 weeks, and Lilly's first Phase 3 topline in the TRIUMPH programme reported 28.7 percent at 68 weeks in people with obesity and knee osteoarthritis. The trade-offs are a transient rise in resting heart rate, heavier nausea at dose steps, and a safety database that is years younger than tirzepatide's. It ranks second on that basis. Read the retatrutide Philippines guide before considering it, and the tirzepatide vs retatrutide comparison if you are choosing between the top two.
3. Cagrilintide: the different pathway
Cagrilintide mimics amylin, the hormone released alongside insulin, and signals fullness through meal volume rather than glucose. Alone it produced 10.8 percent weight reduction at 4.5 mg over 26 weeks in the Lancet 2021 Phase 2 trial; combined with semaglutide in the CagriSema Phase 2 it reached 15.6 percent over 32 weeks in people with type 2 diabetes. On its own it is the weakest of the three appetite peptides, but it is the only one that does not share the GLP-1 side-effect profile, and it is the natural partner in a stack. The cagrilintide Philippines guide and the tirzepatide and cagrilintide stack page go deeper.
4 and 5. AOD-9604 and MOTS-c: supporting peptides, not drivers
Both are honest inclusions on a list of peptide injections for weight loss only if you understand their role. AOD-9604 is a growth hormone fragment that releases stored fat through beta-3 receptors; its human trials, pooled in a 2013 safety review, showed placebo-level side effects but only a modest weight difference. MOTS-c activates AMPK in muscle and improved endurance in mice, with no human weight-loss trial at all. Neither reduces appetite. Where they earn a place is alongside a diet, for people who need to keep training hard, which is why they live in the performance and recovery collection as much as the weight one. The AOD-9604 Philippines guide and the MOTS-c vs AOD-9604 comparison explain the pairing.
Best injectable peptide for weight loss by situation
- More than 15 kg to lose, no prior peptide use: tirzepatide, starting at 2.5 mg with a physician's oversight.
- Plateaued on tirzepatide for two months at 15 mg: discuss retatrutide or adding cagrilintide with your clinician; do not stack without one.
- Nausea forced you off a GLP-1: cagrilintide alone, slower titration.
- Athlete cutting 3 to 5 kg for a weigh-in: AOD-9604 with or without MOTS-c, plus a diet you already control.
- Budget under PHP 2,500 a month: tirzepatide 15 mg at PHP 2,400 covers the first six weeks; the low doses are cheap, the high doses are not.
What a month costs in the Philippines
| Molecule and weekly dose | Vial | Approximate monthly cost |
|---|---|---|
| Tirzepatide 2.5 to 5 mg | 15 mg at PHP 2,400 | PHP 1,600 to 3,200 |
| Tirzepatide 10 to 15 mg | 50 mg at PHP 4,200 | PHP 3,400 to 5,000 |
| Retatrutide 4 mg | 20 mg at PHP 3,840 | About PHP 3,100 |
| Cagrilintide 2.4 mg | 10 mg at PHP 2,640 | About PHP 2,500 |
| AOD-9604 300 mcg daily | 2 mg at PHP 1,800 | About PHP 7,700 |
Market observation, September 2026: Metro Manila clinic programmes built on branded tirzepatide or semaglutide are quoted at PHP 15,000 to 40,000 per month including consultation. Orders above PHP 2,500 from Noki Labs ship free, cold-chain, in 1 to 2 business days in Metro Manila and 2 to 7 elsewhere; the shipping and delivery page has the full table. None of these molecules is registered with the Philippine FDA as a medicine, so read are peptides legal in the Philippines before ordering, and check the current batch certificate on the lab testing page.
What the ranking does not capture
Muscle loss is the quiet cost of every appetite peptide; trials on semaglutide and tirzepatide show a meaningful share of weight lost is lean mass unless protein intake and resistance training are maintained. Regain after stopping is well documented for the whole GLP-1 class. And the Philippine heat adds a practical problem: every one of these vials must be refrigerated once reconstituted, and a brownout can spoil a month's supply. The peptide cycle for weight loss article deals with planning around all three.
FAQ
Which is the strongest peptide for weight loss?
By trial numbers, retatrutide at 12 mg. By evidence depth and safety follow-up, tirzepatide at 15 mg. For most people in 2026 the second matters more.
Are there peptides for weight loss that do not cause nausea?
AOD-9604 and MOTS-c do not act on appetite and rarely cause nausea, but they also produce far less weight loss. Cagrilintide causes less than the GLP-1 peptides for many people.
Can I combine two fat loss peptides?
Tirzepatide with cagrilintide is the most common stack and mirrors the CagriSema logic, but it has not been tested in a published trial. Do it only with a clinician.
How fast will I see results?
In SURMOUNT-1, weight loss was steady from the first month and continued past week 60. Expect gradual change, not a two-week transformation.
Is a peptide injection for weight loss legal in the Philippines?
Research-grade vials are sold openly, but no peptide on this list is a registered medicine here. Clinics that inject branded products import them under their own licences.
What happens when I stop?
Appetite returns within weeks and, without changed habits, weight tends to come back over the following year. Plan the exit before you plan the start.
Where to buy the best peptides for weight loss in the Philippines
All five molecules are in the Noki Labs weight management collection. Start with tirzepatide 15 mg at PHP 2,400, compare it with retatrutide from PHP 3,000 or cagrilintide 10 mg at PHP 2,640, and confirm the batch certificate before you order. Cash on delivery, GCash, Maya, and bank transfer are accepted, with cold-chain delivery nationwide.
Always consult a licensed healthcare provider before starting any new peptide or wellness regimen. Individual results vary. Statements about our products are educational and not intended to diagnose, treat, cure, or prevent any disease.
Last reviewed: September 2026 · Read more in our FAQ
