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Frequently bought together

The 30-day guarantee

If it doesn't deliver, you don't pay for it.

No questions. No friction. No hold times.

We stand behind every formula in the Marco's Groundsβ„’ system. If you don't feel a meaningful improvement within 30 days of your first order of any product, contact us and we'll refund you completely.

No complicated process. No hold times. No questions asked about why.

We built this brand to be used for years. The guarantee exists so you can start without risk.

One step.

Email cs@marcosgrounds.com with your order number. That's the entire process.

We'll confirm your refund within one business day. You'll see the funds within 5–7 business days depending on your bank.

You don't need to return the product.

You don't need to fill in a form.

You don't need to justify the decision.

The terms β€” in plain language.

The guarantee applies to first-time purchasers on their initial order of each product. Limit one per product per household. It does not apply to additional orders placed after an initial order of the same product.

If you're outside the 30-day window and something went wrong β€” damaged product, incorrect item, shipping issue β€” contact us regardless. We assess every case directly and we will make it right.


Consult our policy.

Our guarantee exists because the formulas are serious. If the work has been done properly, the refund policy doesn't get used much. We're comfortable with that bet.

AndrΓ© de Almeida, Founder β€” Marco's Groundsβ„’

Questions before you buy? cs@marcosgrounds.com β€” a real person responds within 24 hours.

Continue Shopping β†’

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Most men who start StoneBoneβ„’ stay on it β€” 93% reorder within 30 days.


30-day money-back guarantee. No questions. No phone calls.

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