Free shipping is offered on all orders of $30 or more. This promotion applies to the Apigenin pre-sale and is valid for US customers. No promo code required; shipping discount is automatically applied at checkout when order total meets the minimum threshold.

Double Wood Supplements offers a wholesale program for practitioners and store owners who do not resell products on Amazon.com, Amazon.co.uk, or other listed marketplaces. Minimum order of 24 bottles required for wholesale pricing; deeper discounts available for orders of at least 99 bottles of one or more products. Orders over 250 units may qualify for lower prices than catalog listings. Eligibility requires completing a wholesale application and meeting terms including no resale on prohibited platforms and compliance with local laws.