122 healthy overweight men (BMI 27) aged 66 to 74 years with baseline testosterone of 550 ng/dl or less, and IGF-I in lower adult range, 167 ng/dl or below, were randomized to receive transdermal testosterone 1% gel (5 g/day or 10 g/day, providing 5 mg or 10 mg testosterone/day) plus GH in doses of 0, 3, or 5 mcg/kg (per 2.2 lb) per day, for 16 wk.


Body composition by dual-energy x-ray absorptiometry, muscle performance, and safety tests.


As indicated in the table, changes in body composition were dose-dependent across the six treatment groups:

Reference: Sattler 2009                  1 kg = 2.2 lb

Total lean body mass increased by 1 - 3 kg (2.2 - 6.6 lb) and leg/arm (appendicular) lean body mass increased by 0.4 - 1.5 kg (0.9 - 3.3 kg).

Total fat mass decreased by 0.4 - 2.3 kg (0.9 - 5 lb), and trunk (abdominal) fat decreased by 0.5 - 1.5 kg (1.1 - 3.3 lb).

It should be noted that only testosterone 5g/day + GH 5 mcg/kg/day, and testosterone 10g/day + GH 3 mcg/kg/day and testosterone 10g/day + GH 5 mcg/kg/day (groups C, E and F) resulted in statistically significant results in all body composition variables.

These body composition changes are illustrated graphically in the figure below:

Reference: Sattler 2009

As can be seen in the table and figure, the changes were clearly dose-dependent.

Maximum voluntary strength of upper and lower body muscles increased by 14 to 35 % (statistically significant only in the three highest dose groups), and correlated with changes in lag/arm lean mass. Aerobic endurance increased in all six groups.

In terms of metabolic effects, fasting blood sugar increased by 3 mg/dl across the entire study population but did not reach significance in any of the six groups. Indices of insulin resistance (HOMA-IR and QUICKI) were likewise unchanged in each of the six groups. Total and low-density lipoprotein (LDL) cholesterol didn't change in any of the six groups. High-density lipoprotein (HDL) cholesterol increased in most participants, but the increase was only significantly in group E by 4 mg/dl. Fasting triglycerides (blood fats) decreased on average by - 18 mg/dl, but the decrease was only significantly in group F by - 40 mg/dl.


The testosterone + GH supplementation resulted in some predictable adverse events; however, they were modest and reversible.

Systolic and diastolic blood pressure increased similarly in each group with mean increases of 12 and 8 mm Hg, respectively. At follow-up over the ensuing 12 weeks after discontinuation of study therapies, the average increases in systolic and blood pressure were lower but still elevated by 9 and 6 mmHg, respectively.

Hematocrit increased significantly in four of the six groups; eight subjects had increases to 50–52%, one to 53%, but none to 54% or greater. After discontinuation of study interventions, hematocrit returned to less than50% in all subjects.

Although PSA increased in subjects by 0.2 ng/ml, it increased significantly only in group F from 1.1 to 1.8 ng/ml); no subject had a PSA increment greater than 1.4 ng/ml and values returned to baseline on repeated testing.

Conclusion and Comment

Supplemental testosterone produces significant gains in total and leg/arm lean mass, muscle strength, and aerobic endurance with significant reductions in whole-body and trunk fat. Results were further enhanced with GH supplementation, i.e. GH augments the beneficial effects of testosterone. It is impressive that these beneficial body composition results were achieved without any resistance training. One can imagine the further improvement of body composition by combining testosterone + GH therapy with resistance training.

The important take home message from these studies is that combined testosterone + GH therapy results in a larger magnitude of beneficial effects while keeping side effects at a minimum. Thus, testosterone combined with GH is a more effective muscle anabolic / fat loss treatment than either alone, and thus confers a better risk/benefit ratio.

It should be underscored that by combining testosterone and GH, a given anabolic and fat loss effect is achieved with a smaller dose of each compared with when testosterone and GH are given alone, and thus the risk for side effects is minimized. There may also be an extra effect that may not be achievable with either alone, which is likely because testosterone and GH/IGF-1 act on different metabolic pathways in an additive and possibly even synergistic manner.[11]


Ageless Forever does not offer multiple anabolic therapy for athletic enhancement or bodybuilding gains. This practice is considered illegal and unethical.

The studies we report on GH were conducted in subjects with established sub-optimal hormone levels.

Our goal at Ageless Forever is to replace (within the pysiological range) and balance sub-optimal hormone levels, as identified by comprehensive blood testing and clinical evaluation, for prevention of metabolic deterioration and health promotion.


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