What is Grape Skin Extract Powder?
Grape Skin Extract Powder is a dry standardized natural colorant that is created by means of extracting colorant-rich fractions out of the grape skins and transforming the concentrated extract into a stable powder form using controlled drying procedures. It has been developed to be used mainly by companies in the industrial sector and provides red to purple hues based on grape-skin colorants, and provides manufacturers with an alternative to synthetic coloring agents in formulated products based on plants. It is the preferred powder form due to its ease of handling, storage, and compatibility with all food, beverage, nutritional, and personal care supply chain dry blends, premixes, and multi-component formulations. Specification control can be used to control its color performance (i.e., the concentration of colorants, solubility, and dispersion properties) such that in large-scale production, it yields a consistent visual performance. As a functional color ingredient, it can be used as a clean-label tool, a traceable source ingredient, and a tool for formulating.

COA
| Item | Specification | Method | Result |
| Appearance | Reddish purple to dark purple fine powder | Visual | Conforms |
| Odor & Taste | Characteristic | Organoleptic | Conforms |
| Identification | Positive | TLC | Conforms |
| Total Anthocyanins | ≥ 5.0% | UV-Vis | Conforms |
| Loss on Drying | ≤ 8.0% | USP <731> | Conforms |
| Ash | ≤ 10.0% | USP <281> | Conforms |
| pH (1% aqueous solution) | 3.0 – 5.0 | USP | Conforms |
| Solubility | Partially soluble in water | Visual | Conforms |
| Particle Size | ≥ 95% pass 80 mesh | Sieve | Conforms |
| Total Heavy Metals | ≤ 10 ppm | ICP-MS | Conforms |
| Total Plate Count | ≤ 10,000 CFU/g | USP <61> | Conforms |
| Yeast & Mold | ≤ 1,000 CFU/g | USP <61> | Conforms |
| E. coli | Negative / 10 g | USP <62> | Conforms |
| Salmonella | Negative / 25 g | USP <62> | Conforms |
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Recommended Dosage
The level of Grape Skin Extract (natural colorant) to be suggested as a colorant standard is largely based on the standardized anthocyanin concentration, which is the color-active fraction. Under normal commercial practice, a standard concentration of reference dose in finished product is usually between the ranges of about 0.02% to 0.25 by weight, though there are applications of higher visual impact that may need a concentration of up to about 0.3% in certain cases, depending on the intensity of shade required, hue depth, and general formulation structure. Instead of using fixed addition rates, manufacturers usually use the optimal dosage by matching target color performance with total anthocyanin content or specified color value units, and this ensures a good deal of control and repeatability among large production batches. Depending on the product matrix composition, moisture level, processing temperature, light exposure, and pH conditions, which may affect colorant expression and stability significantly, the effective use level may vary greatly. It is for this reason that pilot tests and color-matching evaluations are usually undertaken during product development to carefully adjust the inclusion rate of each given application.
Application
1. Food and Beverage Manufacturing
The extract is usually utilized to give red through purple to processed foods and beverages, such as dry mixes, bakery systems, confectionery, flavored powders, and beverage bases. The plant-based origin and the fact that it can be used in clean-label strategies are appreciated by manufacturers since it can be used in both dry and reconstituted formulations.
2. Nutritional and Functional Product Formulation
It is used in this industry as a visual differentiator and positioning in the natural colors of powders, tablets, capsules, and sachets. Its standardized pigment content enables the formulators to be able to obtain the same look of a batch of pigment without adding synthetic dyes.
3. Cosmetic and Personal Care Industry
Powder finds application as a natural coloring ingredient in cosmetic and personal care products like creams, gels, soaps, and decorative products. Its botanical sourcing as well as branding using plant-based ingredients, even as it allows it to control coloration in both water-based and emulsified systems.
4. Dietary Supplement Premixes and Contract Manufacturing
The extract is used as a multi-ingredient blend by the contract manufacturers and premix suppliers, in which the extract must be dispersed uniformly, preserved in storage, and handled easily. The scalable processing is enhanced by the powder form, which also makes the logistics easier in factory settings.
5. Specialty Ingredients and Custom Formulation Services
Red Grape Skin Extract is used by ingredient suppliers and formulation service providers as a customizable color ingredient in custom solutions of their own label and under OEM customers. The capability to adjust its color intensity and supply, which is specification-based, makes it a perfect bespoke use in various markets and regulatory jurisdictions.

Safety
An industrial and regulatory perspective on the safety of Grape Peel Extract as a natural colorant is justified by the fact that it was produced under controlled manufacturing conditions and because of regular safety tests imposed on the supply of commercial ingredients. Manufacturing of this ingredient is done in reputable manufacturers, where facilities work in compliance with the cGMP and ISO quality management frameworks, which provide uniformity to the processes, traceability, and management of contamination risks throughout large-scale production. To ensure that the extract is suitable to be used in regulated consumer products, the extract is normally subjected to standardized toxicological evaluations that include colorant ingredient and specifications testing of purity and solvents, heavy metal elements, and microbiological parameters. It is considered to have low allergenic potential when utilized within acceptable specification limits, and has a plant-derived origin, in addition to the fact that an insoluble and unwanted fraction is removed in the processing. The correct application levels, the category of use, and full compliance with the local and regional regulatory requirements on the application of natural colorants, however, remain to be determined to ensure the final product safety and acceptance.
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