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BARLEY SH-POLYPEPTIDE-8.

Essential / SKIN CONDITIONING

A high-purity, bio-identical growth factor produced through barley-based recombinant technology, functioning as a stable analog to human Platelet-Derived Growth Factor (PDGF-BB). It serves as a potent signaling molecule designed to accelerate dermal remodeling and reinforce the skin's structural integrity.

Cell-communicating ingredient Skin conditioning Collagen synthesis stimulant Wound healing accelerator

Science

It binds specifically to PDGFR-alpha and PDGFR-beta cell surface receptors, initiating a signaling cascade that recruits and activates fibroblasts. This process stimulates the synthesis of essential extracellular matrix proteins, including collagen and glycosaminoglycans, while simultaneously regulating MMP2 and MMP9 activity to prevent the enzymatic degradation of the skin's support structure.


Research

High confidence
Effective range 5e-8–1%
Optimal

0.1%

Key findings

  1. 01 Induces a 240% increase in endothelial cell proliferation and a 170% boost in migration at concentrations as low as 0.5-10 ng/mL.
  2. 02 Clinical trials utilizing 0.1% to 1.0% concentrations demonstrated significant reductions in wrinkle depth and measurable improvements in dermal thickness and elasticity.

Transparency

Not commonly dusted
Min. effective
5e-8%
Red flag below
1e-8%

Due to its nature as a high-potency growth factor, this ingredient is biologically active at nanogram levels (0.5-10 ng/mL). While it may appear at the bottom of an INCI list, concentrations as low as 0.000001% are clinically sufficient to induce fibroblast chemotaxis and proliferation.


The Formula

Solubility
Water
Optimal pH 5.5 – 7
0 7 14

Stability

Highly thermolabile; must be incorporated during the cooling phase below 40°C. It is susceptible to denaturation by proteolytic enzymes and extreme pH shifts.

Synergies

  • Hyaluronic acid
  • Other barley-derived growth factors (EGF)
  • Non-acidic humectants

Conflicts

  • Proteolytic enzymes (Papain, Bromelain)
  • Strong Alpha Hydroxy Acids (pH < 4.0)
  • Strong Oxidants
  • High temperatures (>40°C)

Safety

CIR Status
Safe as used
Max tested
1%
Sensitization risk Low

Barley-derived recombinant proteins are considered safer than E. coli-derived versions as they are free from endotoxin contamination and are bio-identical to human proteins.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Essential

An elite, bio-engineered signaling peptide that provides precise cellular instructions to rebuild the dermal matrix and reverse structural aging.


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References