Weight Management
A weight loss program built for you by a licensed physician
When the same habits stop working, our expert team can help build a plan around your metabolism, appetite, and goals, so progress can start feeling possible again.
BMI calculator
Find your body mass index
BMI is body mass index — a figure that puts your weight against your height to show where you sit relative to the adult reference ranges. Enter your height and weight to see your number and which band it falls in.
Your BMI
—
- UnderweightUnder 18.5
- Healthy weight18.5 – 24.9
- Overweight25 – 29.9
- Obesity30 and above
BMI does not measure body composition. It can read high for people carrying a lot of muscle and low for people carrying little, and it is not a reliable figure for children, pregnant people, the elderly, or some ethnic groups. It is a screening number, not a diagnosis, and it does not determine eligibility for any protocol. A licensed prescriber reviews your history before anything is prescribed.
Metabolic compounds, grouped by how they work
Research-use-only material, organised by receptor target. Every compound links through to its product page, where the available sizes and lot documentation are listed.
GLP-1
Semaglutide
Single-agonist GLP-1 studied for appetite signalling, gastric emptying and glycaemic control. The reference compound for most metabolic protocols.
Dual agonist
Tirzepatide
GIP and GLP-1 receptor dual agonist. Reported the largest body-composition shift of the incretin class in head-to-head literature.
Triple agonist
GLP-3 (Reta)
GIP, GLP-1 and glucagon receptor triple agonist, and the most-watched compound in current metabolic research.
Amylin
Cagrilintide
Long-acting amylin analogue studied alongside GLP-1 agonists for satiety signalling through a separate receptor pathway.
GHRH
Tesamorelin
Growth-hormone-releasing hormone analogue investigated for visceral adipose tissue rather than total mass.
Lipolytic
AOD-9604
Modified hGH fragment (176–191) studied for lipolytic activity without the glucose effects of full-chain growth hormone.
Why the same habits stop producing the same result
Appetite is regulated by incretin signalling: the GLP-1, GIP and amylin pathways that shift with age, sleep debt and repeated caloric restriction. That shift is measurable, and it is what the compounds in this category are studied against.
Our catalogue is organised by mechanism rather than by brand, so a protocol can be designed around a specific receptor target instead of whichever compound is trending.
01
Incretin signalling
GLP-1 and GIP receptor activity governs satiety and gastric emptying, which is the pathway the agonist class targets directly.
02
Amylin co-signalling
Amylin analogues act on a separate satiety route, which is why they appear in combination protocols rather than alone.
03
Adipose-specific pathways
GHRH analogues and hGH fragments are studied for visceral fat and lipolysis rather than total body mass.
What the published trials actually reported
21%
Dual-agonist mass change
Mean reduction reported over 72 weeks in the published tirzepatide obesity trial.
15%
Single-agonist mass change
Mean reduction reported over 68 weeks for weekly semaglutide in the same population.
Third party
Verification on every lot
HPLC purity plus mass-spectrometry identity, filed against the lot number in your account.
Figures describe published trial literature for the reference compounds, not outcomes from BuyTides material. Products are supplied for laboratory research use only and are not for human or veterinary use.
Reference calculator
What the literature reports at each starting weight
Set a starting weight and see the range reported across the 68- and 72-week dual-agonist trials. It is a modelling aid for study design, not a prediction.
Starting weight
210 lb
Reported range
32–50 lb
15–24% of body weight at 68 to 72 weeks
What a titration schedule looks like on paper
Week 0
Week 0
Baseline draw and body-composition scan before any compound is introduced, so later change has something to sit against.
Weeks 1 to 4
Weeks 1 to 4
Lowest studied dose held constant while tolerability and appetite measures are logged weekly.
Weeks 5 to 12
Weeks 5 to 12
Stepwise titration at four-week intervals, with glucose and lipid panels repeated at each step.
Weeks 13 to 36
Weeks 13 to 36
Maintenance dose held while body-composition and metabolic markers are tracked monthly.
Week 36 onward
Week 36 onward
Taper or continuation arm: the phase with the thinnest published data, and where most current research sits.
Four mechanisms side by side
| Semaglutide | Tirzepatide | Retatrutide | Cagrilintide | |
|---|---|---|---|---|
| Receptor target | GLP-1 | GIP + GLP-1 | GIP + GLP-1 + glucagon | Amylin |
| Dosing interval | Weekly | Weekly | Weekly | Weekly |
| Reported mass change | ≈15% at 68 wk | ≈21% at 72 wk | ≈24% at 48 wk | ≈10% as monotherapy |
| Studied alongside | Cagrilintide | Cagrilintide | Monotherapy | Semaglutide |
| Reconstituted stability | 28 days at 2–8 °C | 28 days at 2–8 °C | 21 days at 2–8 °C | 28 days at 2–8 °C |
Figures describe published trial literature for the reference compounds, not results from BuyTides material.
Questions we get most
Which compound should a first protocol use?
Most researchers start with a single-agonist GLP-1 because the published dose-response data is deepest there, then move to a dual or triple agonist when the study design calls for a larger effect size. Mechanism, not potency, should drive the choice.
How is purity established for each lot?
Every lot is tested by an independent laboratory using HPLC for purity and mass spectrometry for identity. The certificate of analysis is attached to the lot number in your account before the order ships, and it stays downloadable indefinitely.
How is the material shipped and stored?
Lyophilised vials dispatch within 24 hours in insulated cold-chain packaging. Store unopened vials at −20 °C; once reconstituted with bacteriostatic water, refrigerate at 2–8 °C and observe the stability window in the comparison table above.
Who can order from this category?
Ordering requires a registered account with a valid doctor referral code, and the account holder must certify that all material is handled for laboratory research use only. Nothing sold here is for human or veterinary use.