EGF is not evaluated or approved by the FDA. It is discussed for research and educational purposes only, not as medical guidance.

Is Rigin FDA approved?

Rigin is not evaluated or approved by the FDA. It is discussed for research and educational purposes only, not as medical guidance.

How is EGF administered in research settings?

In research settings, EGF is typically administered via the topical, subcutaneous, or microneedling routes. PeptideBase does not provide dosing or administration instructions.

How is Rigin administered in research settings?

In research settings, Rigin is typically administered via the topical route. PeptideBase does not provide dosing or administration instructions.

Home›Research›Compare›EGF vs Rigin

Peptide Comparison

EGF vs Rigin

Q: What is the difference between EGF and Rigin?

EGF: Binds EGFR (EGF receptor / ErbB1), activating RAS/MAPK and PI3K/Akt signaling cascades. Rigin: Palmitoylated tetrapeptide mimicking IgG C-terminal sequence; reduces IL-6 production in keratinocytes; combined with Matrixyl (Pal-GHK) forms Matrixyl 3000; anti-inflammatory and skin matrix support

Both are Skin & Cosmetic peptides.

EGF

Epidermal Growth Factor

Skin & JointNot EvaluatedResearch Only

No providers listed yet

Full EGF profile →

Rigin

Palmitoyl Tetrapeptide-7

Skin & JointNot EvaluatedResearch Only

Half-life: N/A (topical)

2 providers listed

Full Rigin profile →

Bottom line

EGF has published research citations on file; Rigin does not yet — the main evidence gap between them.

Quick Verdict

EGF

Evidence

Observational

Rigin

Evidence

Not rated

Which One Should You Choose?

Your goal	Better option
Has published research citations	EGF
More provider options (0 vs 2)	Rigin

Research summary only — not medical advice. Consult a qualified provider before making any decisions.

Side-by-Side Comparison

EGF

Rigin

Mechanism Family

Skin & Cosmetic

Half-life

—

N/A (topical)

FDA Status

not evaluated

Admin Routes

topical, subcutaneous, microneedling

topical

Availability

Research Only

Providers

None listed

2 listed

Avail. Notes

—

Cosmetic peptide (palmitoyl tetrapeptide-7). Anti-inflammatory cosmetic ingredient. Not regulated as a drug by FDA. No NDA or IND. Cosmetic use only in skincare formulations.

Research Evidence

EGF

ObservationalCohort study · 3 key studies · most recent 2026

Rigin

No citations on file

Research Citations

EGF

Review2026 · Cell Tissue Bank

Determinants of extraction efficiency in human amniotic membrane processing: biological, mechanical, and bioc…

Cohort2026 · Gels

Development of Antiseptic and Epidermal Growth Factor Co-Loaded Thermoresponsive Composite Hydrogel for Wound…

Cohort2009 · International Wound Journal

The efficacy and safety of epidermal growth factor in treatment of diabetic foot ulcers: the preliminary resu…

Rigin

No citations on file.

About EGF

Binds EGFR (EGF receptor / ErbB1), activating RAS/MAPK and PI3K/Akt signaling cascades. Promotes keratinocyte and fibroblast proliferation, accelerates wound re-epithelialization, and stimulates collagen and hyaluronic acid production.

Research Areas

skin regenerationwound healingcollagen stimulationpost-procedure recovery

About Rigin

Palmitoylated tetrapeptide mimicking IgG C-terminal sequence; reduces IL-6 production in keratinocytes; combined with Matrixyl (Pal-GHK) forms Matrixyl 3000; anti-inflammatory and skin matrix support

Research Areas

anti-inflammatory (skin)skin tighteningextracellular matrix supportwrinkle reduction

Safety Profile

Information below reflects published research data only — not medical advice. Consult a qualified provider before use.

EGF

Absolute Contraindications

Under clinical review

Being verified by our medical team before we display contraindications for this peptide.

Rigin

No established clinical contraindications. This is an investigational compound with limited human data and has not been evaluated by the FDA for safety in this context. Consult a qualified clinician.

Find Providers

Where to source these peptides

Providers offering

EGF

Browse directory →

Providers offering

Rigin

2 listed

Browse directory →

PeptideBase lists providers for educational research purposes only. Always consult a qualified healthcare professional before obtaining or using any peptide.

More Skin & Cosmetic Comparisons

Browse all peptides →

Educational research tools — not medical advice.