The default checkout here is one-time purchase — but confirming that stays true through the actual checkout flow is worth the extra care.
Per the brand's own stated terms, the standard checkout path is one-time purchase, with no default recurring billing.
A separate opt-in "Subscribe & Save 10%" checkbox exists at checkout — leaving it unchecked keeps you on the one-time path. Checking it enrolls you in recurring monthly billing instead.
Verify the ingredient panel and checkout terms before you order.
Check Current Pricing