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Follistatin 344 vs Selank

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

Last reviewed . By the PeptIQ team.

Observational reporting only — not medical advice. Does not recommend doses, protocols, or treatments.
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Follistatin 344

6 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 100% · Mixed 0% · Unfavorable overall 0%

Most reported benefits

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

Recovery
6
Sleep
6
Energy
3

Self-reported dose per injection

Median bucket: 50–100 mcg · Most common: 50–100 mcg

Reports span 50–200 mcg

50–100
4
100–200
2

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

Commonly stacked with

Selank

57 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
184
Recovery
184

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
94
Fatigue
85

Self-reported dose per injection

Median bucket: 0.2–0.4 mg · Most common: 0.2–0.4 mg

Reports span 0.1 to ≥ 5 mg (open-ended top bucket)

0.1–0.2 mg
3
0.2–0.4 mg
96
0.4–0.6 mg
76
0.6–1 mg
5
1–2 mg
2
5+ mg
2

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, 86% said they felt similar to their last entry, 14% more positive, and 0% more negative.

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

Median gap between entries: 54 days · Based on 35 repeat reporters

Sources (11)

Published sources linked on the Follistatin 344 and Selank wiki pages.

  1. PubMed

    Follistatin induces muscle hypertrophy through satellite cell proliferation and inhibition of both myostatin and activin

    Winbanks CE, Wang B, Beyer C, et al. American Journal of Physiology — Endocrinology and Metabolism. 2009

    Source
    Wiki study page →

  2. ClinicalTrials.gov

    Follistatin / Myostatin inhibition studies on ClinicalTrials.gov

    ClinicalTrials.gov. Clinical trial registry. 2024

    Source
    Wiki study page →

  3. PubMed

    Follistatin-derived peptide expression in muscle decreases adipose tissue mass and prevents hepatic steatosis

    Sugiyama M, Yamaki A, Furuya M, et al. American Journal of Physiology — Endocrinology and Metabolism. 2010

    Source
    Wiki study page →

  4. PubMed

    Evaluation of follistatin as a therapeutic in models of skeletal muscle atrophy associated with denervation and tenotomy

    Sepulveda PV, Bush ED, Bhattacharya A, et al. Scientific Reports. 2015

    Source
    Wiki study page →

  5. PubMed

    The impact of weight loss on fat-free mass, muscle, bone and hematopoiesis health: Implications for emerging pharmacotherapies aiming at fat reduction and lean mass preservation

    Stefanakis K, Kokkorakis M, Mantzoros CS. Metabolism: clinical and experimental. 2024

    Source
    Wiki study page →

  6. PubMed

    Selank and short peptides regulate expression of inflammatory genes

    Ershov FI, Uchakin PN, Ershova OV. Bull Exp Biol Med. 2017

    Source
    Wiki study page →

  7. PubMed

    Selank, a tuftsin analogue, demonstrates anxiolytic activity

    Seredenin SB, Kozlovskaya MM. Bull Exp Biol Med. 2008

    Source
    Wiki study page →

  10. PubMed

    Functional Connectomic Approach to Studying Selank and Semax Effects

    Panikratova YR, Lebedeva IS, Sokolov OY, et al. Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections. 2020

    Source
    Wiki study page →

  11. PubMed

    Selank, a Peptide Analog of Tuftsin, Attenuates Aversive Signs of Morphine Withdrawal in Rats

    Konstantinopolsky MA, Chernyakova IV, Kolik LG. Bulletin of experimental biology and medicine. 2022

    Source
    Wiki study page →

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