benefits
Offer benefits
- Buy 3 bottles, get 1 of the same free.
- Pay for 3, receive 4 — exactly one full course.
- The gift is the same product you bought and ships with your order.
Course Purchase Policy
Course Purchase Policy · Buy 3 Get 1
Four bottles make a full course — steadier care, greater peace of mind.
Last updated: July 3, 2026
Every AOWEISI product is measured in “courses,” and a full course is 4 bottles. Choose “Buy by Course” to enjoy the Buy 3, Get 1 Free offer: purchase 3 bottles and receive 1 more of the same product free — a full course.
Buy 3, get 1 of the same free
Pay for 3, receive 4
4 bottles = one full course
rules
Eligibility rules
- The offer applies to all products on the AOWEISI website.
- Choose “Buy by Course” on the product page; each course is 3 paid bottles + 1 free bottle of the same product.
- Purchases are made in courses; buying 2 courses means paying for 6 and receiving 8, and so on.
- The gift is shown as Free Gift in the cart or at checkout; the checkout page is authoritative.
- If a product is temporarily out of stock, choose another available product or follow the notice on the page.
refund
Refunds & cancellation
If an order is cancelled, refunded, returned, charged back, fails payment, or is otherwise abnormal, the corresponding gift eligibility is cancelled accordingly. If the gift has already shipped, AOWEISI may reclaim, deduct, or recalculate the gift benefit under its after-sales rules.
no-stacking
No stacking
The Buy 3 Get 1 course benefit cannot, by default, be combined with discount codes, points redemption, first-order offers, share gifts, member discounts or other promotions, unless the campaign or checkout page explicitly states otherwise.
final
Final interpretation
AOWEISI reserves the right to reasonably adjust, suspend or terminate the Buy 3 Get 1 course policy based on stock, region, payment, logistics, system configuration and campaign operations. The final benefit is determined by the information shown on the checkout page at order submission.