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Normal Hormone Levels

Below are listed normal levels of IGF-1, testosterone, estrogens, estradiol, estriol, estrone, and progesterone.

Please note, all hormones decrease with age so the levels listed below are what modern western medicine considers "normal for age". These normal ranges take into account the fact that without intervention the hormone levels in the body will continue to decline with age. Of course the decrease of these important hormones as we age plays a major role in the physical effects of aging.

Rather than focus on what is considered normal for age we in anti-aging and functional medicine aim for the hormone levels that are required in order for the body to function optimally. This usually means having a level that is at the mid to high end of the normal ranges below.

IGF-1 Levels Used For Checking HGH

Once released by the pituitary gland human growth hormone remains in the bloodstream for only a few minutes before being taken in by the liver. For this reason measuring an accurate HGH blood level requires an involved and time consuming stimulation test that has certain risk factors.

Because IGF-1 is released in response to HGH and it remains stable in the blood longer it is the test normally used in adults.

IGF-1 Levels (Somatomedin C)
Age Male (ng/ml) Female (ng/ml)
2 months - 5 years 17-248 17-248
6 - 8 years 88-474 88-474
9 - 11 years 110-565 117-771
12 - 15 years 202-957 261-1096
16 - 24 years 182-780 182-780
25 - 39 years 114-492 114-492
40 - 54 years 90-360 90-360
>55 years 71-290 71-290

HGH and IGF-1 Therapy

 

Estradiol
Females ZRT Reference Range - pg/ml
Premenopausal 1.3-3.3
Postmenopausal 0.5-1.7
Males  
  0.5-2.2
Estriol
Females ZRT Reference Range - pg/ml
Premenopausal <7
Postmenopausal <7
Males  
  0-3
Estrone
Females ZRT Reference Range - pg/ml
  1.6-5
Males  
  0-3
Estrogens
Females Reference Range - pmol/l
Prepubertal 12 -57
Follicular Phase 29-525
Luteal Phase 126-478
Postmenopausal 23-103
Males  
Prepubertal 12-55
Adult 38-139

Estrogen & Progesterone

Progesterone
Females ZRT Range- pg/ml ng/ml pmol/l
Luteal Phase 75-270 4-20 11.6-58
Follicular Phase 12-100 0.3-0.8 0.9-2.3
Postmenopausal 12-100    
Males      
  15-100 0/12-0.3 0.3-0.9

 

Testosterone

Testosterone (Total)
Males ZRT Range - pg/ml Males Reference Range - ng/dL
Age   Age  
All Ages 44-148 20-30 280-1205
16-30 72-148 30-40 350-1010
31-50 58-120 40-50 255-1025
51-70 44-94 50-60 255-950
>70 30-77 60-70 120-870
    70-80 38-850
    80-90 28-390
       
    Females  
    Age  
    adults 2-45

 

Please note: The reference ranges at different labs may vary and may be different than the ranges posted here. Your own lab report should show the correct ranges for your specific tests.

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