What matters in this format
A powder carries far more material per serving than a capsule or tablet, often several grams. That removes the fill-volume and compression limits of tablets and capsules. It adds five constraints of its own: flow, segregation, moisture, dispersion and taste.
- Flow and dosing. Auger fillers and stick-pack lines need a free-flowing blend. Fine, cohesive or electrostatic powders bridge in hoppers and give variable fill weights.
- Segregation. Ingredients with different particle sizes and densities separate during transport and filling. Micronutrients used at milligram levels are most at risk, so they are often pre-blended with a carrier first.
- Moisture and caking. Hygroscopic ingredients take up water once the pack is opened. The result is lumps, poor flow and faster loss of sensitive vitamins. Water activity of the blend and the barrier of the pack set the shelf life.
- Wetting and dispersion. The powder is shaken into water or milk. Hydrophobic particles float and poorly soluble ones settle, and both are visible in the glass.
- Taste. Nothing hides the material. Bitter amino acids, salty minerals and acidic vitamins need a flavour, sweetener and acid system built around them.
Particle size, bulk density and moisture content are specification values, and they differ between grades of the same substance. Check them before scaling a blend. SoleChem sends the specification sheet and certificate of analysis with each quote.
Ingredients that suit it
| Ingredient | Why it fits powders | What to watch |
|---|---|---|
| Creatine monohydrate | Used at gram levels per serving; neutral taste | Limited solubility in cold water, so it settles in drinks; finer grades disperse better |
| Beta alanine | Water-soluble, mild taste, used at gram levels | Serving volume when combined with other gram-level actives |
| L-leucine | Standard component of amino acid blends | Hydrophobic and poorly wettable; instantised grades disperse more easily; bitter note |
| L-glutamine | Neutral taste, stable as a dry powder | Degrades in solution over time, so it suits dry blends mixed before use |
| L-arginine | Soluble, used at gram levels | The free base gives an alkaline, bitter solution; the acid system must offset it |
| Taurine | Readily soluble, near-neutral taste | Few processing issues; national rules on such substances differ |
| L-Carnitine | Soluble, used at gram levels | The base is strongly hygroscopic; the L-tartrate salt is the usual choice for dry blends |
| Hydrolyzed collagen | Dissolves in cold water and does not gel | Large bulk per serving; the protein base carries its own flavour |
| Inulin | Soluble fibre with mild sweetness; adds body | Hygroscopic; cakes in humid conditions |
| Potassium chloride | Soluble mineral source for electrolyte drinks | Salty and bitter notes need masking |
| Magnesium salts, see magnesium forms | Common in drink and electrolyte powders | The form sets elemental content per gram, solubility and taste |
| Ascorbic acid | Soluble; adds acidity to the flavour | Sensitive to moisture, heat and metal ions; plan an overage with the overage calculator |
Excipients and processing aids
Flow and anticaking. Silicon dioxide coats host particles and reduces cohesion and moisture bridging. It is used at low levels. Too much gives a dusty blend and can leave a haze in clear drinks.
Acid and buffer. Citric acid sets the sour profile and lowers the pH of the drink. Trisodium citrate buffers it and softens sharp acidity. The pair is the usual base of a flavour system for amino acid and electrolyte powders.
Bulk sweeteners and carriers. Erythritol, mannitol and sorbitol add sweetness and volume and can carry micronutrient premixes. Mannitol and erythritol take up little moisture. Sorbitol is hygroscopic and needs drier handling. Erythritol has a noticeable cooling taste.
Body and suspension. Polydextrose is a soluble bulking agent that adds body with little sweetness. Pectin thickens the reconstituted drink and helps keep insoluble particles suspended. Pre-blend it with a sugar or polyol so it hydrates without lumps.
Capsule and tablet excipients. Microcrystalline cellulose, magnesium stearate and sodium stearyl fumarate are compression aids. Gelatin, HPMC and pullulan are capsule-shell materials. They matter here only when the same blend also goes into capsules or tablets. Magnesium stearate is hydrophobic and floats in drinks.
Regulatory and labelling points
Article 2 of Directive 2002/46/EC names sachets of powder among the dose forms of food supplements. A bulk tub with a scoop may be classed as a food supplement or as another food, depending on presentation. Member state authorities can judge borderline products differently.
The classification decides which rules apply. Vitamin and mineral forms in food supplements must appear in Annex II of Directive 2002/46/EC. In other foods, Annex II of Regulation (EC) No 1925/2006 applies. See permitted vitamin and mineral forms. Maximum levels of vitamins and minerals are set nationally; see maximum levels by country.
Amino acids, creatine and similar substances have no EU-wide positive list for food supplements. National rules apply and differ by member state. Check each ingredient against the novel food guide and the Union list in Implementing Regulation (EU) 2017/2470.
Silicon dioxide, citric acid, trisodium citrate, the polyols, polydextrose and pectin are food additives under Regulation (EC) No 1333/2008. Each may be used in food supplements only as Annex II, food category 17, permits. Conditions can differ between solid and liquid supplements. Each additive must meet its specification in Regulation (EU) No 231/2012.
Annex III of Regulation (EU) No 1169/2011 sets mandatory statements for foods containing sweeteners and for foods with added polyols above a threshold. For food supplements, Article 8 of Directive 2002/46/EC requires the amount of each nutrient per recommended daily portion. See the labelling guide. Claims on sports powders follow Regulation (EC) No 1924/2006; see the health-claims guide and the EU Register.