Wolfberry Peptide / Goji Berry Polypeptides / Goji Berry Protein Peptides / Goji Berry Peptides

Product Title

Goji Berry Peptides (Wolfberry Oligopeptide) | Low Molecular Weight (<1000 Da), 98% Purity, Food Grade

Product Name: Goji Berry Peptides / Wolfberry Peptide / Goji Berry Protein Peptide / Goji Berry Polypeptides
Botanical Source: Dried fruit of Lycium barbarum L. (wolfberry / goji berry)
Grade: Food Grade
Peptide Content: ≥98%
Molecular Weight: Average <1000 Daltons (mainly di‑ to oligopeptides)
Appearance: Off‑white to light yellowish powder, free‑flowing, no agglomeration, no visible impurities
Particle Size: 99% passes through 80‑mesh sieve
Loss on Drying: ≤6%
Total Plate Count: <1000 CFU/g
Salmonella: Negative
E. coli: Negative
Shelf Life: 24 months

Product Overview

Goji berry (Lycium barbarum) has been treasured for centuries in traditional Asian wellness practices for its remarkable nutritive and protective properties. By applying advanced enzymatic hydrolysis technology, we have transformed the native proteins of goji berries into low‑molecular‑weight bioactive peptides (predominantly <1000 Da). This process yields a highly concentrated peptide powder that retains the full spectrum of active components found in the whole fruit, while offering significantly enhanced digestibility and absorption.

The resulting oligopeptides are rapidly taken up by the intestinal epithelium, delivering essential amino acids and functional sequences directly into the bloodstream – a delivery efficiency far superior to intact proteins or free amino acid mixtures. This makes goji berry peptide an ideal ingredient for modern nutritional products aimed at supporting immune resilience, visual health, liver function, and systemic antioxidant capacity.

Our product is manufactured under strict food‑grade conditions, with ≥98% peptide content, and is characterized by its fine powder consistency, neutral taste, and excellent solubility – allowing seamless incorporation into a wide range of dietary supplements, functional beverages, and fortified foods.

Mechanisms of Action & Key Bioactivities

Goji berry peptides exert their benefits through multiple well‑documented pathways:

1. Potent Antioxidant Defense

• Peptide sequences rich in hydrophobic amino acids (e.g., proline, leucine) efficiently scavenge hydroxyl and superoxide radicals.

• Upregulate endogenous antioxidant enzymes (SOD, GSH‑Px), reducing oxidative stress in critical tissues such as the liver and retina.

• The low‑molecular‑weight profile ensures rapid intracellular delivery, protecting mitochondria from reactive species.

2. Immune System Modulation

• Stimulate macrophage phagocytic activity and enhance natural killer (NK) cell cytotoxicity.

• Promote the proliferation of lymphocytes and regulate cytokine balance (e.g., increasing IL‑2, IFN‑γ).

• Help maintain healthy mucosal immunity, particularly in the gastrointestinal and respiratory tracts.

3. Ocular Health Support

• Peptide fragments derived from goji berry have been shown to protect retinal pigment epithelial cells from oxidative damage.

• May support the bioavailability of zeaxanthin and other carotenoids naturally present in goji, contributing to macular health and visual acuity.

4. Hepatoprotective & Metabolic Benefits

• Alleviate chemical‑ or alcohol‑induced liver injury by reducing lipid peroxidation and preserving hepatic enzyme balance.

• Assist in regulating lipid metabolism, helping to maintain healthy serum cholesterol and triglyceride levels.

• Support glycogen synthesis and glucose homeostasis, contributing to sustained energy release.

5. Anti‑Fatigue & Vitality Enhancement

• Accelerate the clearance of lactate and urea nitrogen after exercise, reducing physical fatigue.

• Provide readily utilizable amino acid building blocks for muscle repair and energy regeneration, making it suitable for active individuals.

Key Specifications

Application Scenarios

Note: Recommended dosages are for reference only; final use levels should be determined based on target health claims and regulatory compliance.

Why Choose Our Goji Berry Peptide? 

✅ True Low Molecular Weight – Average <1000 Da ensures rapid absorption and maximum biological activity.

✅ High Peptide Purity – ≥98% peptide content, minimising inert carriers and maximising efficacy per gram.

✅ Enzymatic Hydrolysis – Mild process preserves naturally occurring bioactive sequences, unlike acid/alkaline hydrolysis which may degrade functional epitopes.

✅ Excellent Processing Properties – Fine powder (80 mesh), neutral flavour, and good dispersibility for dry and liquid applications alike.

✅ Microbiologically Safe – Strict control over total plate count, salmonella, and E. coli, meeting international food safety standards.

✅ Versatile & Customisable – Available in 1 kg sample pouches and 15 kg bulk cartons, with custom packaging upon request.

✅ Sustainably Sourced – Goji berries from certified farms with full traceability from cultivation to final product.

Packaging & Storage 

Storage Conditions: Keep sealed, protected from direct sunlight, and store in a cool (≤25°C), dry, and well‑ventilated area. Avoid high temperature and excessive humidity.
Shelf Life: 24 months from date of manufacture under recommended storage.