# Cost Per Milligram Analysis: Finding Value in Retatrutide Research Supplies

Canonical source: https://retacompare.com/research/cost-per-milligram-analysis

Purchasing Guide · 2025-10-20


    When budgeting for peptide research, the cost per milligram is the most meaningful metric for comparing supplier pricing. The sticker price of a vial can be misleading without considering the quantity, purity, and additional costs like shipping and handling. A thorough cost-per-milligram analysis reveals which suppliers truly offer the best value for research-grade Retatrutide.


The calculation is straightforward: divide the total cost (including shipping) by the number of milligrams in the vial. For a standard 20mg vial, this means dividing the total delivered cost by 20. However, effective cost per milligram should also account for purity, since a lower-purity product means you are receiving less actual Retatrutide per milligram of powder. A 95% purity product effectively costs more per milligram of active peptide than a 99% purity product at the same nominal price.


Among the suppliers currently available, Compound Sciences (compoundsciences.com) stands out with their Retatrutide 20mg priced at $99.99 with free shipping. This translates to approximately $5.00 per milligram with no additional costs. When their 99.9% purity is factored in, the effective cost per milligram of active peptide remains virtually unchanged at $5.00, representing exceptional value in the research peptide market.


Compare this to suppliers charging $200-400 per 20mg vial with additional shipping fees of $15-25, where the effective cost per milligram can range from $10.75 to $21.25. These higher costs can significantly impact research budgets, especially for studies requiring multiple vials over extended experimental timelines. By selecting a supplier with competitive pricing and high purity, research groups can stretch their budgets further without compromising on quality.

## Sources