Question 1

What is the difference between mcg and mg?

Accepted Answer

Mcg (micrograms) and mg (milligrams) are both weight measurements. There are 1,000 mcg in 1 mg. Most peptide doses are listed in mcg because the amounts are very small.

Question 2

How do you convert IU to mcg for HGH?

Accepted Answer

For human growth hormone, 1 IU equals about 333 mcg (or 0.333 mg). So 3 IU of HGH equals roughly 1 mg. This conversion is specific to HGH and doesn't apply to other peptides.

Question 3

Why do peptides use different units?

Accepted Answer

Different units exist for historical reasons. HGH has always been measured in IU. Research peptides use mcg because doses are tiny. GLP-1 drugs use mg because the doses are larger. The active amount is what matters.

Question 4

Is 1 IU always the same amount?

Accepted Answer

No. An IU (International Unit) is based on biological activity, not weight. 1 IU of HGH is 333 mcg, but 1 IU of insulin is about 34.7 mcg. Always check which substance you're converting.

Question 5

How many mcg are in 1 mg?

Accepted Answer

There are exactly 1,000 mcg in 1 mg. To convert mg to mcg, multiply by 1,000. To convert mcg to mg, divide by 1,000. For example, 250 mcg = 0.25 mg.

From	To	Formula
1 mg	1,000 mcg	mg x 1000
1 mcg	0.001 mg	mcg / 1000
1 IU (HGH)	333 mcg	IU x 333
1 mg (HGH)	3 IU	mg x 3

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