If ordinary vitamin C reliably upsets your gut, this is the most comfortable capsule on the list. Pure Encapsulations buffers ascorbic acid with three mineral ascorbates — calcium, magnesium and potassium — for a near-neutral pH, and builds it hypoallergenic with no fillers or binders. Be clear about what you're buying, though: comfort and purity, not extra absorption.
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Read the complete Vitamin C guide →Fully buffered with calcium, magnesium and potassium ascorbates. Absorption matches ordinary ascorbic acid — the mineral buffering changes tolerance, not uptake — but it's a clean, well-formulated version of the form.
Reputable practitioner-grade brand with brand-stated third-party testing and tight formulation standards. Strong, though not carrying a public USP/NSF product seal.
1,000 mg per capsule per the brand label — a single bolus that overshoots the saturation ceiling. Dose isn't surfaced in the listing meta, so confirm on the current label.
Three mineral ascorbates make this the gentlest, most pH-neutral option in the group, and the hypoallergenic, filler- and binder-free build is purpose-made for reactive individuals.
At about $0.38 per capsule it's the most expensive capsule here. You pay for purity and tolerability, not absorption.
“Three mineral ascorbates make it the gentlest, most pH-neutral vitamin C.”
Calcium, magnesium and potassium ascorbates neutralize the acidity of ascorbic acid, which is the most reliable route to GI comfort and consistent with full-buffering formulation.
“The mineral buffering improves bioavailability.”
Mineral ascorbates absorb equivalently to plain ascorbic acid; you gain tolerance, not uptake. Saturable kinetics (Levine 1996) apply regardless of buffering.
“Hypoallergenic with no fillers or binders.”
Consistent with Pure Encapsulations' published hypoallergenic formulation standards.
“1,000 mg vitamin C per capsule.”
The dose is stated on the brand label but is not surfaced in the listing meta; confirm on the current label as formulations can change.
The combination of full mineral buffering plus a hypoallergenic, filler-free base is the point. If cheaper buffered tablets still bother you, this is the next step up in gentleness.
Be clear-eyed: the mineral ascorbates neutralize acidity, they don't get more vitamin C into your blood. Absorption tracks any ascorbic acid, so don't pay this premium expecting better uptake.
Third-party testing and tight standards back the brand, but at ~$0.38 a capsule it's the costliest capsule here. That's a considered choice for sensitive users, not a value play.
The 1,000 mg figure comes from the brand label and isn't in the listing meta. Double-check the current bottle, since practitioner brands occasionally adjust formulations.
If plain vitamin C reliably upsets your gut and you value a clean, hypoallergenic formula, this is the most comfortable capsule on the list. Just be clear about what you're buying — formulation and tolerability, not extra absorption. At ~$0.38 a serving it's a considered choice for sensitive users, not a value play.
Check Pure Encapsulations on AmazonMost of the comfort at a quarter of the per-serving cost.
See it on the list →Another non-acidic branded form, cheaper if you trust the Ester-C name.
See it on the list →Cleaner testing story and a smarter 500 mg dose if your stomach can handle it.
See it on the list →Mineral-buffered and plain ascorbic acid share the same saturable absorption; buffering does not raise plasma vitamin C.
Oral vitamin C plasma levels are tightly regulated regardless of the salt form, so a 1,000 mg buffered dose still overshoots retention.
