Test/NPP Mix 150

Testosterone propionate and nandrolone phenylpropionate in equal parts, ready to use in oil. Both esters are short. Because the shares are fixed, nandrolone cannot be lowered separately.

In a randomised trial 29 dialysis patients received nandrolone decanoate or placebo once a week for 6 months. Fat-free mass rose by 4.5 kg on nandrolone and by 1.9 kg on placebo. The walking and stair test got faster on nandrolone and slower on placebo, grip strength stayed the same. The long decanoate ester was used, the active substance is the same as in the phenylpropionate.

Because of the short esters. After one injection of testosterone propionate testosterone stayed above the normal range for about 48 hours in healthy men. In an older comparison study levels stayed above the lower normal limit for one to two days after propionate and for 14 days after enanthate. For nandrolone phenylpropionate the sources checked here contain no measurement in humans.

No. As of 26 October 2026 ClinicalTrials.gov lists no study on the blend and none on nandrolone phenylpropionate. For nandrolone decanoate by injection it lists 4 phase 2 trials, testosterone propionate appears there only as a nasal spray or cream.

In strength athletes who took several steroids at once HDL cholesterol fell from 1.08 to 0.43 mmol/l and had not recovered six weeks after stopping. Nandrolone decanoate alone over 8 weeks did not change blood lipids, only lipoprotein (a) fell. In another study current users had high blood pressure more often (51 vs 17 percent).

Yes, clearly. In a trial with five dose levels of testosterone enanthate over 20 weeks (the body's own production was switched off with medication) fat-free mass rose by 3.4, 5.2 and 7.9 kg in the three higher levels. Leg strength, muscle volume and haemoglobin rose with the testosterone level while fat mass and HDL cholesterol fell. Mood and PSA did not change clearly at any level.

The HAARLEM study followed 100 men through a self-chosen cycle and one year. All reported at least one side effect, most often fluid retention (56 percent) and agitation (36 percent) during the cycle and lower libido afterwards (58 percent). Acne occurred in 28 percent and breast tissue growth in 19 percent. Four had a serious event. After one year the observed effects were back at baseline. Prolactin effects, which the lexicon describes for nandrolone, were not reported separately there.