★ Discreet worldwide shipping

Also known as

Testo Mix

SynthesisGear lists two distinct injectable products under the name Testo Mix. The first is Flexagen, a 10ml vial containing a 300mg blend of five testosterone esters from Genetic Labs. The second is Magnus 10ml, which holds 400mg and pairs testosterone decanoate with testosterone enanthate. Both are testosterone-based anabolic steroids (injectable). Buyers should compare the specific ester profiles and total milligram content to match their intended use.

Composition of the Two Formulations

Considerations for Choosing a Product

Athletes and users must account for the differing ester compositions when planning their dosing schedules. The specific mix of esters in each product will influence how it is administered. Accurate dosing based on these distinct profiles is essential to avoid errors.

Questions & answers

What are the main differences between the two products?

Flexagen contains 300mg of a blend of five testosterone esters, while Magnus has 400mg and includes testosterone decanoate alongside enanthate.

Do both products contain multiple testosterone esters?

Yes. Flexagen is a blend of five testosterone esters, whereas Magnus contains two: testosterone decanoate and testosterone enanthate.

Why are the total milligram amounts different?

The 10ml vials contain different total doses—300mg in Flexagen and 400mg in Magnus—which reflects their distinct ester compositions and concentrations.

Verified Manufacturers

Lab-tested pharmaceutical grade

Fast Dispatch

Orders ship within 24 hours

1,160+ Reviews

4.8 / 5 from verified buyers

Discreet & Secure

Plain packaging, SSL checkout

Start typing — products, ingredients and articles are indexed.