BulkSupplements Micellar Casein Protein Powder, Unflavored Review

It's 100% micellar casein as a single ingredient — the slow-release form, unflavored, no additives — which is genuinely clean. On pure form it's legitimate. It scores toward the lower end of the lineup here not because the form is wrong but because it's the most no-frills execution: basic sourcing detail, no cold-processing or grass-fed story, just plain micellar casein. Still the right form, just without the extras that lift the top picks.

About 25 g of protein for ~110 calories with 0 g carbs and 0 g sugar — a clean, lean macro. The honest nuance: the label lists a 30 g serving size that yields roughly 25 g protein, so the effective protein-per-scoop is a touch lower than the headline serving weight suggests. Solid, night-appropriate macros, scored mid-low here mainly on that serving-size framing rather than any real weakness.

The lowest score on this axis, and honestly so: it's cGMP-manufactured and the brand states it tests its products, but there's no Informed Sport or NSF banned-substance seal — 'none stated.' Brand-run testing plus cGMP is a reasonable floor, but it isn't independent certification, and we won't frame it as one. If a verified seal matters, NOW (#4) is Informed Sport at a similarly low price.

The best axis and the whole point: at about $32 for a 1 kg bag, cost per serving lands near $0.97, and on cost per gram of protein it's among the lowest in the lineup. A large single-ingredient bag delivers slow-release protein about as cheaply as it gets. This is the highest value score of the bulk picks and the sole reason it makes the list despite the no-frills everything else.

Unflavored, so there's no taste to rate, and plain casein is bland and thick — expected for the format. It mixes acceptably into oats, yogurt or a flavored smoothie, which is how you'd use it. It scores mid-pack rather than bottom here only because it's on par with the other unflavored bags; on its own in water it's not something you'll enjoy drinking.