Exfoliants

Secale Cereale Seed Extract

INCI: SECALE CEREALE SEED EXTRACT

Reviewed by Rosie · Last updated 14 Aug 2026

Also known as: Secale Cereale Seed Extract

A cereal seed extract with peptides that may support skin resilience

Best For Skin Types

All, Dry, Mature

Addresses

Dryness, Barrier repair, Texture

Usage Frequency

2-3 times per week

What Is Secale Cereale Seed Extract?

Secale cereale seed extract is derived from rye grain and contains a range of bioactive compounds, including peptides and proteins. When used in skincare, it functions primarily as a skin conditioning agent and gentle abrasive, helping to refine skin texture and support the skin barrier.

Rye seed extract is uncommon in cosmetic formulations, appearing in roughly 0.1% of skincare products. It is typically included at low concentrations where its conditioning properties can benefit skin without causing irritation.

Benefits for Your Skin

How It Works

Secale cereale seed extract works through multiple mechanisms. Its peptide and protein content, particularly compounds like lunasin, can penetrate the skin and provide conditioning benefits. When used as a gentle abrasive, finely milled particles remove dead skin cells mechanically, revealing smoother skin underneath.

The bioactive peptides in rye are relatively stable and can be absorbed by skin tissue, where they may support cellular function and barrier integrity. This dual action—both mechanical and biochemical—makes the extract a multifunctional ingredient.

Clinical Evidence & References

Research has identified lunasin, a 43-amino acid peptide, within rye and related cereals. Laboratory and animal studies suggest this peptide has bioactive properties and can be absorbed and utilised by tissues, though most existing research focuses on systemic health rather than topical skincare application.

Evidence specifically for skincare benefits is limited. Whilst the ingredient's conditioning and gentle exfoliating properties are well-established in cosmetic use, robust clinical trials demonstrating efficacy in human skin remain sparse. More research would be valuable to confirm the degree to which bioactive peptides penetrate and benefit skin when applied topically.

How to Use

Secale cereale seed extract is typically found in gentle exfoliating products, cleansers, and conditioning treatments. Use as directed by the individual product; if included in an exfoliating formulation, limit use to 2–3 times per week to avoid over-exfoliation. It works well alongside hydrating or barrier-supporting ingredients to balance any mild exfoliating action.

Safety & Precautions

Generally well-tolerated by most skin types. Those with rye pollen allergies should exercise caution, as potential cross-reactivity with cereal proteins is theoretically possible, though topical application poses lower risk than ingestion.

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