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PE-22-28

Research Use Only
peptideIntranasalSubcutaneous injection

A brain-boosting peptide derived from a natural nerve-protecting protein (PEDF). It strengthens memory formation and sharpens cognitive performance through a unique mechanism that's different from other popular nootropics like Semax.

Dosing

200-500 mcg as a nasal spray or subq daily. Cycle 4 weeks on, then take a break.

Benefit Profile

🧠 Brain & Cognition
8/10
😌 Mood & Anxiety
4/10

Pricing

VendorVariantPrice
Limitless BiotechNasal 5mg$49.99
Code: PSTACK10Buy
Skye Peptides5mg$44.99BEST

Published Research

20 studies indexed(2015–2025)1 review

Functional Roles of Pigment Epithelium-Derived Factor in Retinal Degenerative and Vascular Disorders: A Scoping Review.

Jakobsen TS, Adsersen RL, et al.·Invest Ophthalmol Vis Sci·2024
Review

A PEDF-Derived Short Peptide Prevents Sodium Iodate-Induced Retinal Degeneration in Rats by Activating the SLC7A11/GSH/GPX4 Pathway in the RPE Cells.

Ho TC, Tsai SH, et al.·J Cell Mol Med·2025
Research Article

Proteomic profiling of adipose-derived mesenchymal stromal cell response to novel compounds targeting the Laminin Receptor - PEDF interaction.

Figueiredo ML, Figueiredo Neto M, et al.·Biochem Biophys Rep·2025
Research Article

PEDF-derived peptide protects against Amyloid-β toxicity in vitro and prevents retinal dysfunction in rats.

Qarawani A, Naaman E, et al.·Exp Eye Res·2024
Research Article

Corrigendum to "PEDF and PEDF-derived peptide 44mer inhibit oxygen-glucose deprivation-induced oxidative stress through upregulating PPARγ via PEDF-R in H9c2 cells" [Biochem. Biophys. Res. Commun. 473 (3) (2016) 482-488].

Zhuang W, Zhang H, et al.·Biochem Biophys Res Commun·2023
Research Article

A short peptide derived from pigment epithelial-derived factor exhibits an angioinhibitory effect.

Ho TC, Yeh SI, et al.·BMC Ophthalmol·2022
Research Article

The Therapeutic Effects of a PEDF-Derived Short Peptide on Murine Experimental Dry Eye Involves Suppression of MMP-9 and Inflammation.

Ho TC, Fan NW, et al.·Transl Vis Sci Technol·2022
Research Article

Exploration of novel anti-angiogenic PEDF-derived peptides with improved activitives by inhibiting proliferation, suppressing migration, and inducing 67LR internalization.

Shi W, Li J, et al.·Bioorg Chem·2021
Research Article

Inhibition of retinal neovascularization by a PEDF-derived nonapeptide in newborn mice subjected to oxygen-induced ischemic retinopathy.

Sheibani N, Zaitoun IS, et al.·Exp Eye Res·2020
Research Article

PEDF-derived peptide promotes tendon regeneration through its mitogenic effect on tendon stem/progenitor cells.

Ho TC, Tsai SH, et al.·Stem Cell Res Ther·2019
Research Article
Showing 10 of 20 studies. Search PubMed for the complete list.

Stacks Well With