JJ Smith offers a 15% off code on all supplements, which applies to website purchases only. This is the strongest discount currently available and works best for shoppers stocking up on their wellness essentials. If you're placing your first order with JJ Smith, a separate 10% off code is also available, though the 15% offer will save you more on any basket size. For shoppers interested in regular deliveries, a 10% discount applies to subscription sign ups.
Your first order: If this is your first purchase at JJ Smith, you have two code options. The 10% off first order code gives you a discount on that initial purchase, but the 15% off supplements code will save you more on the same basket. On a $60 supplement purchase, for example, the 15% code takes off $9 and leaves you with $51, while the 10% code would leave you at $54. Use whichever code saves more depending on what you're buying.
Regular supplement buyers: The 15% off code on all supplements is your go to choice for ongoing purchases. Since it cannot be combined with any other offer, you'll apply it alone at checkout to get the strongest saving across your order.
Starting a subscription: The 10% discount on your first subscription box is a standalone offer that applies when you sign up for a recurring delivery. This is separate from the code based deals and gives you an automatic saving on your subscription's first charge.
In the 12 months to October 2026, the largest discount we recorded for JJ Smith was up to 25% off in December 2025, so the current 15% code represents a solid saving but is not at the top end of what the brand has offered in that time.
When you have multiple code options available for the same order, compare the final totals and choose whichever leaves you paying less. Neither the 15% off code nor the 10% off first order code can be stacked with other offers, so select the single code that gives you the bigger saving on your basket.