Pepwise research calculator

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Adjust the starting weight to see a simple percentage calculation. Use the illustration as a starting point for understanding the maths, with its limitations in view.

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Starting weight

120kg

60 kg180 kg

Illustrative 23% change

28kg

120 kg × 23% = 28 kg, rounded to the nearest kilogram.

This tool applies a fixed 23% to the weight you select, matching the home-page calculation. The percentage is an arithmetic example, not an expected result, a target, or a prediction of individual weight loss.

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Retatrutide product vial

Retatrutide

A multi-receptor peptide studied across GLP-1, GIP and glucagon receptor pathways.

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Tirzepatide product vial

Tirzepatide

A dual-receptor peptide studied across GIP and GLP-1 receptor pathways.

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Semaglutide product vial

Semaglutide

A GLP-1 receptor agonist widely studied in metabolic and endocrine research.

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This calculator does not assess your health, recommend treatments or dosages, or establish whether a product is appropriate for you. It does not predict or guarantee outcomes.

It is not medical advice. Discuss personal health decisions with a qualified healthcare professional. Products and pathways are not suitable for everyone, and this calculation does not establish safety or eligibility.

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Visit the products page to review product descriptions and available quality information. Your calculator inputs do not determine or personalise the catalogue.

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