Hydrolyzed Collagen Peptide Powder Vitamin C Glutathione Collagen Stick Skin Whitening Hair Growth OEM Customization Service

Molecular Weight Targeting : Hydrolysis degree adjusted to achieve buyer-specified molecular weight range - lighter peptide chains for beauty positioning, heavier for sports recovery formulas.

Enzymatic Hydrolysis In-House : Full hydrolysis process conducted on-site - no outsourced peptide processing, giving factory direct control over peptide chain length and purity grade.

ISO 22000 Food Safety Certified : Full food safety management system covering raw material sourcing through finished product release - audit records accessible per production run.

Heavy Metal & Contaminant Panel : Lead, cadmium, arsenic, and mercury tested per batch by accredited external laboratory - results issued with COA before shipment release, not on request.

Guoyitang (Guangzhou) Food Co., Ltd. is located in Huadu District Guangzhou China, 15-minute drive from Baiyun Airport with easy transportation. As a professional manufacturer of healthcare supplements and dietary supplements, we have over 12 years of industry experience. Established in 2019, our 16,000-square-meter factory is fully fitted with workshops, laboratories and warehouses. We integrate traditional Chinese dietary therapy with modern nutrition and advanced extraction technologies to create premium products meeting global requirements.
We handle R&D, production, packaging and quality control, supplying powder, jelly, gummy, capsules, drops,oral liquids, pressed candies and sachet drinks. Our star items include Cutting Mix Drink, Gluta Collagen Pink Powder, Cambodia Gracia Jelly Sticks Slimming, Kleanvein Oral Liquid, Beauty Milk Collagen Drink, Chia Coffee and Fiber XS Berry. Equipped with dust-free automated workshops, we guarantee hygienic and stable products. Our robust annual capacity reaches 20 million oral liquid bottles, 50 million jelly sachets, 100 million powder sticks and 100 million pressed candies, reliably supporting bulk and long-term orders.
We are certified with GMP, HACCP, ISO22000,SGS,Intertek,CE,HALAL and PONY certifications. All goods comply with international standards, especially rules for our key markets in Europe, America and Canada, and we also serve Southeast Asia.
Our product lines cover oral beauty, weight management, digestive nutrition, evening relaxation, and daily wellness. We have more than 5,000 mature formulas tailored to local diets and regulations. We provide free samples for market testing and finish customized sample 3days sample,7days for trial order, Free professional packaging design is also available to save your expenses. We work with retail brands, private labels and start-ups, offering full tracking from consultation to after-sales service.

certificates

Company overview

Competitive advantages

Factory profile

Production workflow

Trade show participation

Packaging & shipping specifications

Extended company profile