The Evolution of No. 9: Organic German Grapeseed Extract and the Science of Purity
OUMERE Laboratory — Palm Beach, Florida
Published:

Abstract
OUMERE’s No. 9 Exfoliant now features a USDA-certified organic Vitis Vinifera (Grape) Seed Powder sourced from Germany. This refinement elevates antioxidant activity, biological purity, and formulation stability. The updated extract undergoes a 48-hour fermentation, yielding higher proanthocyanidin bioavailability and a rose-gold pigment profile—a visual signature of its advanced purity and oxidative balance.
Origin & Certification
- INCI: Vitis Vinifera (Grape) Seed Powder
- Origin: Germany
- Extraction: Organic press-cake milling from grape seed oil production
- Certification: USDA Certified Organic
- Shelf Life: 3 Years
The mechanical milling method preserves the molecular integrity of catechins, gallic acid, epicatechin, and oligomeric proanthocyanidins, minimizing oxidation and maximizing biological potency. No solvents or synthetic stabilizers are used.
Fermentation Science
The coarser morphology of the organic German extract required refinement of OUMERE’s proprietary aqueous fermentation process. The 48-hour fermentation allows natural enzymes to convert complex tannins into bioavailable oligomers, improving antioxidant delivery while maintaining the product’s signature acidic pH that supports the skin’s acid mantle.
The pigment evolution—from maroon to rose-gold—marks the formation of stabilized polyphenolic complexes, correlating with higher oxidative resistance and smoother exfoliation kinetics in vivo.
Biological Function
- Antioxidant Concentration: +10% increase in proanthocyanidin density compared to prior batches.
- Barrier-Safe Exfoliation: Larger particle size enables uniform mechanical exfoliation with reduced microtrauma.
- Microbiome Preservation: Fermented matrix supports commensal skin flora through mild acid balance.
- Acid Mantle Harmony: Maintains surface pH between 4.7–5.3 for optimal enzymatic repair.
Visual & Sensory Profile
The evolved rose-gold hue and balanced texture distinguish this batch of No. 9. The color represents biological stability, while the tactile quality reflects OUMERE’s precise control of natural exfoliating particles. The result is a formulation that feels living—responding to skin, not reacting against it.
Conclusion
With this evolution, OUMERE once again demonstrates that biology—not marketing—defines luxury. The transition to organic German grapeseed extract refines No. 9’s performance and reaffirms OUMERE’s standing as the global authority in scientific skincare formulation.
Further Reading & Research
Editor’s Lab Note
OUMERE’s continuous evolution of ingredient sourcing mirrors the self-correcting systems of nature itself. Fermented polyphenols act as adaptive antioxidants—dynamic molecules that calibrate their reactivity to the oxidative potential of skin lipids. The rose-gold transformation of No. 9 is thus more than aesthetic—it is biological proof of molecular refinement.