Vitamin C
2 brands compared · cheapest first
ThorneBest value
Vitamin C 1,000 mg
1,000 mg · 60 capsules
$19.00for 60 doses
$0.317per dose
$0.000317 / mg
Thorne also sells Vitamin C 500mg w/ bioflavonoids (different SKU) for the lower-dose camp.
Life Extension
Vitamin C 24-Hour Liposomal Hydrogel
1,000 mg liposomal C · 90 tablets
$36.99for 90 doses
$0.411per dose
$0.000411 / mg
Liposomal form for higher absorption + sustained release (24-hour). LE also has Vitamin C + Bioquercetin (B07KVX6B5N, $22.50 / 250 tabs) — better value if you don't need liposomal.
Note
Pure Encapsulations sells various vitamin C products (Buffered C, Esters, etc.) — search PE-specific. Their standard Buffered Vitamin C is ~$28/250g powder. Generic vitamin C is cheap from any reputable brand (NOW, Doctor's Best) — premium forms only matter for high doses or GI sensitivity.