15 Years of Factory Strength: The Foundation of Reliable OEM Cooperation
Dr. Tong’s core advantage lies in its 15 years of production and R&D experience in herbal nutrition supplements, a track record that ensures mature manufacturing processes and strict quality control. The company’s production capabilities are further fortified by a 100,000-level GMP purification workshop—a critical standard for probiotic products, as it prevents contamination and preserves the activity of beneficial bacteria. Equipped with advanced domestic and international testing equipment and automated production lines, Dr. Tong minimizes human error during manufacturing, ensuring consistent product quality batch after batch.
Wholesale OEM Liquid Probiotic Oil Drops for Improves Gut Health Supplement
Quality is also embedded in raw material selection: the factory sources high-quality ingredients globally, from sunflower seed oil and MCT oil (the base of the probiotic drops) to Bifidobacterium animalis (the key probiotic strain). Every raw material undergoes rigorous inspection, and the entire production process is monitored in real time—guaranteeing that every bottle of probiotic oil drops meets health food grade standards, a non-negotiable for brands targeting health-conscious consumers.
Product Advantages: High Efficacy, Stability, and Customization for OEM Partners
Dr. Tong’s liquid probiotic oil drops are designed to solve pain points for both brands and end-users, making them a competitive choice in the OEM market:
- Ultra-high probiotic activity: Formulated with 100 billion CFUs (Colony-Forming Units)—a measure of probiotic potency—these drops ensure more beneficial bacteria survive the journey through the stomach’s acidic environment to reach the gut, where they support digestion, balance intestinal flora, and enhance immunity. This high CFU count is a key selling point for brands looking to highlight efficacy.
- Superior stability and portability: Unlike powdered probiotics, which are prone to moisture damage, the oil-based formula of these drops locks in probiotic activity, extending the product’s shelf life to 24 months (when stored in a cool, dry place). The compact 10ml/15ml/30ml bottle sizes are portable, fitting into purses or travel bags—appealing to on-the-go consumers.
- Flexible OEM customization: Dr. Tong caters to brands’ unique needs with customizable packaging (private labels, brand logos) and product specifications (bottle size, label design). Whether a brand targets adult consumers (the product’s core applicable group) or needs to emphasize “gut health” or “digestion promotion” on labels, the factory accommodates these requests to align with brand positioning.
Notably, the product also includes safety safeguards: it is clearly marked as not applicable to pregnant women and newborns, helping brands avoid compliance risks and build trust with consumers.
Comprehensive Service Support: From Sample to After-Sales, Empowering OEM Brands
Dr. Tong understands that smooth service is as important as product quality for OEM partners, which is why it offers end-to-end support:
- Free samples and quick response: Brands can request free samples to test product quality before placing large orders, reducing investment risks. The company’s customer service team guarantees an average response time of ≤24 hours, ensuring timely answers to questions about production, customization, or delivery.
- On-time delivery and quality certificates: With a 15-day delivery time for bulk orders (MOQ: 5,000 bottles), Dr. Tong helps brands avoid stockouts. It also provides customized quality certificates to meet the regulatory requirements of different markets, simplifying brands’ import and sales processes.
- Competitive pricing and after-sales service: As a direct factory, Dr. Tong offers factory-direct prices—starting at US$2.5 per bottle for orders of ≥10,000 units—to help brands maximize profit margins. Post-delivery, the company provides online after-sales support, addressing any product-related issues promptly.

By:Global OEMs