Peptide Encyclopedia

50–150 mg

~2-4 hours (estimated)

Once daily (oral)

2 routes

100–400 mcg

~5 minutes (rapidly cleaved by ACE)

1x daily

2 routes

0.5–3 mg

10-15 days (Fc fusion extends half-life)

Once every 2 weeks (based on clinical trial dosing)

2 routes

5–10 mg

~3-5 hours (topical activity window)

Twice daily (topical application)

Topi

0.5–2 mg

~1-2 hours

Once daily (topical to scalp or skin)

2 routes

Varies

Unknown

As needed

0 routes

250–500 mcg

~30 minutes

once daily, fasted

2 routes

2–4 mg

~2 minutes (rapid clearance, prolonged tissue effects)

1x daily

2 routes

Varies

Unknown

As needed

0 routes

250–500 mcg

4 hours (estimated)

1-2x daily

3 routes

200–500 mcg

~4-6 hours (estimated from animal pharmacokinetic data)

1-2 times daily

2 routes

250–500 mcg

4 hours (estimated)

1-2x daily

3 routes

0.6–1.2 mg

~8 hours

1x daily

3 routes

2.4–2.4 mg

~5-7 days (both components)

Once weekly (semaglutide component; cagrilintide 2.4 mg)

Subc

500–1000 mg

~9 minutes in plasma (rapidly degraded by carnosinase); tissue levels persist longer

Twice daily (oral)

2 routes

5–30 mg

~30 minutes (active metabolites persist longer)

1x daily for 10-20 day cycles

2 routes

100–300 mcg

of approximately 30 minutes. It produces acute GH pulses that more closely mimic natural physiology.Half-Life~30 minutes

1-3 times daily

Subc

1000–2000 mcg

to approximately 6-8 days. This allows for sustained GH elevation with less frequent dosing compared to non-DAC variants.Half-Life6-8 days

1-2 times per week

Subc

10–50 mcg

Short (minutes as intact peptide; epigenetic effects persist)

once daily

2 routes

10–40 mg

~6 hours (estimated)

1x daily (oral or intranasal)

2 routes

100–300 mcg

~15 minutes (rapid enzymatic degradation)

1x daily before bed

2 routes

5–10 mg

~2-3 hours

Once daily for 10-20 day cycles

2 routes

5–10 mg

~2-3 hours

Once daily for 10-20 day cycles

2 routes

500–2000 mcg

~2-4 hours (estimated from preclinical data)

every 2-3 days

Subc

100–300 mcg

Not well characterized; estimated several hours for circulating forms

Once daily for 10-30 days

2 routes

5–20 mg

~12-24 hours (estimated due to D-amino acid stability)

Twice weekly for defined cycles

2 routes

250–500 mcg

15-20 minutes

1-2 times daily, fasted

Subc

0.5–3 mg

~1-2 hours (injectable); variable topically

Once daily (topical or injection)

2 routes

1–3 mg

~1-2 hours (injectable); varies topically

Once daily

2 routes

1–3 mg

~1 hour (systemic)

1x daily (injection) or 2x daily (topical)

2 routes

100–300 mcg

15-60 minutes

2-3 times daily

2 routes

100-300 mcg

2-3 hours

2-3x daily

Subc

100-200 mcg

2-3 hours

Once daily before bed

2 routes

200–600 mg

~10-15 minutes (IV); intracellular GSH persists for hours

1-3x per week (injectable) or daily (oral/liposomal)

4 routes

3000–5000 mg

~3-4 hours

Once daily, 30-60 minutes before bedtime

Oral

50–200 mcg

2-4 minutes (IV); ~10-40 minutes (SC)

2-3 times per week (pulsatile protocols vary)

2 routes

100–200 mcg

~70 minutes

1-2 times daily

2 routes

1–5 mg

~30 minutes (native); enhanced analogs (HNG) have longer duration

Once daily or 3-5 times per week

2 routes

20–80 mcg

makes it ideal for targeted, site-specific intramuscular injections to promote localized muscle growth.Half-Life20-30 minutes

Pre-workout or immediately post-workout, bilaterally into target muscle

Intr

20–100 mcg

and greater bioavailability than native IGF-1. It is one of the most potent peptides for promoting skeletal muscle hypertrophy and hyperplasia.Half-Life20-30 hours

Once daily, often post-workout on training days

2 routes

20–100 mcg

~15 minutes (heavily regulated by IGFBPs and IGF-2R clearance)

Once daily (research dosing, not clinically established)

2 routes

Varies

Unknown

As needed

0 routes

100–300 mcg

~2 hours

Once daily, 30-60 minutes before bedtime

Subc

100–300 mcg

~2 hours

2-3 times daily

Subc

1–10 mcg

~4 minutes (IV bolus); ~28 minutes (SC)

single dose or pulsatile infusion in research protocols

2 routes

200–500 mcg

~30 minutes

1-2x daily

3 routes

200–500 mcg

~30 minutes

1-2x daily

3 routes

50–100 mg

7-12 hours

once daily, fasted

Oral

0.6–3 mg

~13 hours

Once daily

Subc

50–100 mcg

~4 hours

1x daily or every other day

2 routes

0.5–1 mg

~30 minutes to 1 hour

Once daily for 7-10 days, then maintenance every 2-3 days

Subc

500–1000 mcg

~30-50 minutes

once daily during loading, then every 2-3 days

Subc

250–500 mcg

~1-2 hours

Once daily during loading, then 1-2 times per week for maintenance

Subc

250–1000 mcg

~1 hour

initially daily for loading, then 1-2 times weekly for maintenance

Subc

100–400 mcg

5-7 minutes (extremely short, rapidly degraded by proteases)

Immediately post-workout, bilaterally into trained muscle groups

Intr

Varies

Unknown

As needed

0 routes

10–25 mg

24 hours

once daily

Oral

5–10 mg

~4-6 hours (estimated)

3-5 times per week

2 routes

50–200 mcg

Estimated 2-4 hours (short, no Fc fusion)

Once daily (research dosing, not clinically established)

2 routes

100–400 mcg

~20-60 minutes (extended over parent Selank)

1-2 times daily

Subc

100–600 mcg

~20-60 minutes (extended over parent Semax)

1-2 times daily

Subc

50–200 mg

~30-45 minutes (IV); tissue levels persist longer

1-3x per week (subcutaneous) or 250-500 mg IV

4 routes

10–40 IU

3-5 minutes (IV); ~20-30 minutes (intranasal, sustained brain effects)

as needed, 30-60 minutes before anticipated activity

2 routes

500–1500 mcg

~2-4 hours (estimated from animal studies)

once daily

Subc

2–8 mg

~4-6 hours (topical bioactivity window)

Twice daily (topical application)

Topi

2–5 mg

~3-5 hours (topical bioactivity window)

Twice daily (topical application)

Topi

100–500 mcg

~1-2 hours (estimated from preclinical pharmacokinetics)

Once daily

Subc

100–300 mcg

of native MGF. The PEG moiety shields the peptide from rapid enzymatic degradation, extending its biological activity from minutes to several hours. This allows for systemic distribution and a more practical dosing protocol while retaining MGF's satellite cell-activating properties.Half-LifeSeveral hours (estimated 4-6 hours due to PEGylation)

2-3 times per week, subcutaneous or intramuscular

2 routes

250–500 mcg

4-6 hours (estimated)

1-2x daily

2 routes

100–300 mg

~20 hours (oral)

Oral: 3x daily; Injectable: 1x weekly

3 routes

5–10 mg

~1-2 hours

Once daily for 10-15 day cycles

2 routes

500–1750 mcg

~2.7 hours

as needed, at least 45 minutes before anticipated activity

Subc

0.5–2 mg

~2-4 hours (estimated from preclinical data)

Once daily (topical application to scalp)

2 routes

1–12 mg

~6 days

Once weekly

Subc

250–750 mcg

~3-5 minutes (native); active metabolites persist for several hours

1-3 times daily; evening dose for sleep support

Subc

150–500 mcg

~several minutes (active metabolites persist 3-5 hours)

1-3 times daily

Subc

0.25–2.4 mg

~7 days

Once weekly

2 routes

200–600 mcg

~3-5 minutes (active metabolites persist longer)

1-3 times daily

Subc

200–500 mcg

10-20 minutes

once daily before bed

Subc

Varies

Unknown

As needed

0 routes

10–50 mg

~4-6 hours (estimated from animal pharmacokinetic data)

Once daily (research dosing, not established for humans)

2 routes

3–10 mg

~4-6 hours (topical activity duration)

Twice daily (topical application)

Topi

0.25–4 mg

~4 hours

Once daily

2 routes

Varies

Unknown

As needed

0 routes

0.3–6 mg

~5-6 days

Once weekly

Subc

2–5 mg

~2 hours

2x per week (loading), 1x per week (maintenance)

2 routes

2–5 mg

~2 hours

2x per week (loading), 1x per week (maintenance)

2 routes

250–750 mcg

~1 hour

1x daily or every other day

2 routes

1000–2000 mcg

26-38 minutes

once daily

Subc

0.25–1 mg

~200-300 hours

Once daily (oral)

Oral

5–10 mg

~3-4 hours

Once daily for 5-10 day cycles

2 routes

100–500 mcg

~20 minutes

1x daily intranasally or 2-3x per week injectable

2 routes

1.6–3.2 mg

~2 hours

2x per week

Subc

2.5–15 mg

~5 days

Once weekly

Subc

100–200 mcg

~3 hours (immediate release); depot formulations provide sustained release over weeks

single dose or as prescribed (depot formulations monthly/quarterly)

2 routes

0.5–1 mg

~30-60 minutes

Once daily for 10-15 day cycles

2 routes

50–200 mcg

~1-2 minutes (plasma); tissue effects persist longer

1-4x daily (intranasal) or 1x daily (subcutaneous)

2 routes

5–15 mg

6-10 hours (estimated, limited pharmacokinetic data)

Once daily (oral or injectable, split AM/PM by some researchers)

2 routes