About
our company
As a professional subsidiary of Keep Ingredients Co., Ltd., Water Solu has focused on 100% water-soluble natural ingredients for over 10 years. Keep Ingredients Co., Ltd. is a reliable one-stop high-quality supplier for global clients. Founded to end inferior products deceiving customers and restore industry reputation, we stick to offering quality ingredients at competitive prices to help clients lead their fields.
Our core products cover nutraceuticals (protein peptides, botanical extracts, vitamins, etc.) and beverages (natural colors, juice powders, etc.)— all water-soluble, solving poor solubility and bitter taste (with university collaborations). Client trust comes from strict quality control (bases, 2+ lines, BRC/FDA, 119 certified products, HACCP), competitive advantages (5%-20% lower prices, 6k+ customers, 5k+ cases, stock), and customer-centric service (24/7 support, OEM/ODM, win-win). Starting with Keep in 2012, it specialized in water-soluble ingredients in 2020.
WHY
CHOOSE US
We put your interests first and fuel innovation to deliver water-soluble ingredient solutions you can trust, every step of the way.
View More-
Industry-Leading R&D Power40% of our team are elite researchers with deep expertise, partnering with top universities to craft market-rare, 100% water-soluble extracts. We solve stubborn pain points like poor solubility and bitter taste—so your products stand out.
-
Unbeatable Quality & ValueOur own planting bases and production lines let us deliver 5%-20% cost savings vs. competitors, without compromising on quality. Most products are in stock, so you get fast, reliable delivery every time.
-
Global-Recognized CertificationsWe hold BRC, CGMP, ISO22000, FDA, KOSHER, HALAL, and more—your guarantee of top-tier quality control, from source to delivery.
-
Customer-First ExcellenceEnjoy 24/7 fast responses, tailored OEM/ODM services, and full technical support. We’ve built 6000K+ client relationships across the USA, Europe, Asia, and beyond—because we treat every client like a partner.
Our hot sale products
-
![Pea Protein Peptide]( "Pea Protein Peptide")
Pea Protein PeptideSpecification: Protein ≥90% (dry basis), Peptide Content ≥80% (dry basis), Molecular Weight <1000 Dal, pH 5.0-7.5;
Suggested Soluble Ratio: 5% aqueous... -
![Rice Protein Peptide]( "Rice Protein Peptide")
Rice Protein PeptideSpecification: Protein ≥90% (dry basis), Peptide Content ≥80% (dry basis),
pH 5.0-7.5, Particle Size 80-120 Mesh;
Suggested Soluble Ratio:... -
![Ashwagandha Root Extract Powder]( "Ashwagandha Root Extract Powder")
Ashwagandha Root Extract PowderSpecification: Total Withanolides ≥5.0%, Withaferin A ≤0.1%), PH 4.5-7.0;
Liposomal type;
Suggested Soluble Ratio: 1% instant aqueous suspension... -
![Black Pepper Extract Powder]( "Black Pepper Extract Powder")
Black Pepper Extract PowderSpecification: Piperine ≥4.0% (HPLC);
Liposomal type;
Suggested Soluble Ratio: 3% aqueous dispersion (3g powder dissolved in 100ml... -
![Glucoraphanin Powder]( "Glucoraphanin Powder")
Glucoraphanin PowderSpecification: 13% Glucoraphanin (HPLC), 100% Water-Soluble;
Liposomal type;
Key Features: Bright Light Yellow Color, Excellent Flowability,... -
![Multimineral Complex]( "Multimineral Complex")
Multimineral Complex– High-Quality Nutritional Ingredient for Beverages & Supplements
Key Ingredients: Contains Sodium, Potassium, Potassium Citrate, Chloride, Calcium,... -
![Water Soluble Multivitamins]( "Water Soluble Multivitamins")
Water Soluble MultivitaminsWater Soluble Multivitamins Powder | Instant Soluble Vitamin Premix for Beverages & Supplements
Specification: Contains Vitamin B1 (Thiamine... -
![Yeast Beta Glucan Powder]( "Yeast Beta Glucan Powder")
Yeast Beta Glucan PowderSpecification: 70%/80%/90% β-Glucan Content (Three High-Purity Grades Available)
Suggested Soluble Ratio: 5-15% aqueous solution (fully water-soluble,... -
![Thaumatin]( "Thaumatin")
ThaumatinSpecification: Assay ≥98.0%, pH 5.0-6.5, Moisture ≤2.5%, Relative Substance ≤1.0%, Sulfate ≤0.05%, Residue on Ignition ≤1.5%, Heavy Metals...
-
![Methyl Sulfonyl Methane Powder 99.9%]( "Methyl Sulfonyl Methane Powder 99.9%")
Methyl Sulfonyl Methane Powder 99.9%Specification: 99.9% Minimum Purity, 40-80 Mesh Particle Size
Suggested Solubility: Fully soluble in water (25g/100mL at 20℃), ethanol, and most... -
![Instant Soluble Tea Powder]( "Instant Soluble Tea Powder")
Instant Soluble Tea Powder99% Instant Solubility | Custom Polyphenols | Multi-Tea Portfolio
100% Natural Tea Sourcing
No Artificial Additives
Instant Cold/Hot... -
![Snow Pear Flavor Water/Concentrate]( "Snow Pear Flavor Water/Concentrate")
Snow Pear Flavor Water/ConcentrateSpecification: pH 3.3-5.5, Soluble Solids 0.3%-2.0%, Water Soluble ≥99%, Clear Liquid;
Suggested Soluble Ratio: 1:100 dilution ratio (adjust according...
Latest Updates and events
-
![How to Decode a Spermidine Powder COA: 5 Real Quality Markers That Separate Pharma-Grade from Com...]()
Jun 03, 2026How to Decode a Spermidine Powder COA: 5 Real Quality Markers That Separate Pharma-Grade from Com...Imagine you receive quotations from three spermidine suppliers. All of them claim ≥98% purity, GMP-compliant production , and competitive pricing. Yet one suview more -
![Why Are Consumers Complaining That L-Carnitine Supplements “Do Nothing”?]()
Jun 02, 2026Why Are Consumers Complaining That L-Carnitine Supplements “Do Nothing”?For dietary supplement brands, L-Carnitine remains a foundational powerhouse in weight management and sports nutrition product lines. However, marketing teams aview more -
![USP-Grade Choline Chloride vs. Feed-Grade Choline Chloride: What Are the Critical Differences Buy...]()
Jun 01, 2026USP-Grade Choline Chloride vs. Feed-Grade Choline Chloride: What Are the Critical Differences Buy...If you search for Choline Chloride suppliers online, you may quickly notice a surprising fact: Products carrying the same name can vary dramatically in price. Iview more
GET IN TOUCH
Contact Details
If you are interested in working with us then please drop us a line, we would love to hear from you.