Compare

GHK-Cu vs TB-500

Side-by-side observational reports from PeptIQ users. This compares self-reported patterns — not clinical head-to-head trials.

Observational reporting only — not medical advice. Does not recommend doses, protocols, or treatments.
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GHK-Cu

120 community reports

Overall experience

From check-in ratings — separate from side effects logged below. Side effects are logged separately from overall experience. A favorable check-in can still include nausea, fatigue, or injection-site reactions.

Favorable 3% · Mixed 97% · Unfavorable overall 0%

Most reported benefits

Benefits users selected when logging a favorable or mixed check-in.

Mood
226
Recovery
226
Energy
1

Most logged side effects

Side effects are logged separately from overall experience. A favorable check-in can still include nausea, fatigue, or injection-site reactions.

Injection site irritation
222

Self-reported dose per injection

Median bucket: 2+ mg · Most common: 2+ mg

Reports span 0 to ≥ 2 mg (open-ended top bucket)

0–0.025 mg
1
0.025–0.05 mg
16
0.2–0.4 mg
4
0.6–1 mg
1
1–2 mg
71
2+ mg
135

Anonymized self-reports from PeptIQ users — not prescribing guidance. Buckets group similar logged amounts; open-ended top buckets mean “at least” that dose.

How repeat users are trending

Among repeat reporters, 89% said they felt similar to their last entry, 11% more positive, and 0% more negative.

Overall, repeat reporters leaned more positive than their previous entry.

Median gap between entries: 46 days · Based on 45 repeat reporters

TB-500

103 community reports

Overall experience

From check-in ratings — separate from side effects logged below. Side effects are logged separately from overall experience. A favorable check-in can still include nausea, fatigue, or injection-site reactions.

Favorable 38% · Mixed 62% · Unfavorable overall 0%

Most reported benefits

Benefits users selected when logging a favorable or mixed check-in.

Recovery
219

Most logged side effects

Side effects are logged separately from overall experience. A favorable check-in can still include nausea, fatigue, or injection-site reactions.

Headache
70
Fatigue
65

Self-reported dose per injection

Median bucket: 2+ mg · Most common: 2+ mg

Reports span 0 to ≥ 2 mg (open-ended top bucket)

0–0.025 mg
14
0.025–0.05 mg
1
0.1–0.2 mg
1
0.2–0.4 mg
29
0.4–0.6 mg
25
0.6–1 mg
2
1–2 mg
5
2+ mg
142

Anonymized self-reports from PeptIQ users — not prescribing guidance. Buckets group similar logged amounts; open-ended top buckets mean “at least” that dose.

How repeat users are trending

Among repeat reporters, 57% said they felt similar to their last entry, 23% more positive, and 20% more negative.

Overall, repeat reporters leaned more positive than their previous entry.

Median gap between entries: 63 days · Based on 40 repeat reporters

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