Fiber Trial Packs and Subscriptions: What Changes After the First Order?

At WonderBiotics, your first paid order is covered by a 90-day satisfaction guarantee, whether it's a 7-day Trial Pack, a one-time box, or your first subscription shipment.¹ Orders after that follow different rules. Renewals bill at the standard Subscribe & Save price, and refunds depend mainly on whether the order has shipped.¹,²

If you're deciding how to start Daily Fiber Mix, the order you place first decides which of those rules applies to which box.

What Counts as Your "First Order"?

Our Refund Policy defines your First Order as the first paid order placed under your customer account. It can be a one-time purchase or an initial subscription order. Every later order under the same account is a Subsequent Order, and that includes subscription renewals and any one-time box you add down the road.¹

For that First Order, you can request a refund within 90 days of the delivery date. We refund the product price you paid, and you don't need to send the product back. The guarantee applies once per customer account.¹

The guarantee has two limits on its scope:

• The guarantee follows the order, not the product. If your first purchase is the 7-day Trial Pack, the Trial Pack is the order the guarantee covers. A subscription you start afterward begins as a Subsequent Order. If you skip the Trial Pack and start with a subscription, that first subscription shipment is your First Order, and the renewals after it are Subsequent Orders.¹,²
• The refund covers the product price. Standard shipping inside the U.S. is free. Any tax or optional shipping fee on a shipped order is generally not refunded under the guarantee, unless the law requires it or the refund is due to our error.¹

Trial Pack, One-Time Box, or Subscription: How Do They Compare?

Every Daily Fiber Mix format holds the same sachet: a 6 g blend that provides 5 g of dietary fiber, with directions of 1 to 3 sachets a day.⁵,⁷ What changes from one option to the next is the size, the price, and whether anything renews. Here's how the options on our product page line up:⁵,⁶

The "/mo" figures on the product page are the per-shipment price spread across the months of supply. Your card is charged the full per-shipment amount when that shipment is billed.²,⁵ For a closer look at what each serving costs per day at one, two, or three sachets, see our breakdown of what a daily fiber packet costs.

Subscribe & Save plans on our product page come in 1-, 3-, and 6-month supplies.⁵ A recurring charge starts only when you enroll in a Subscribe & Save plan at checkout.²

Your daily amount also changes how long a box lasts. At one sachet a day, a 30-sachet box covers about a month. At two sachets, it covers about 15 days, and at three, about 10. If you plan to take more than one sachet a day, size your subscription to match, which you can do from your account (more on that below).

What Price Do Subscription Renewals Charge?

Each subscription shipment is billed at the Subscribe & Save price for that product. If your enrollment included a promotional discount, such as a first-order discount or a coupon, the shipments after it are billed at the standard Subscribe & Save price.²

New customers who sign up for our emails can get an extra 10% off their first order.⁵ That discount, like any promotional discount on the order that starts your subscription, doesn't carry into your renewals.² Plan your budget around the Subscribe & Save price in the table, not the total on your first receipt.

Each renewal also comes with these safeguards:

• A reminder before each shipment. We email you before each shipment with the ship date, the product, and the amount we'll charge, so you have time to skip, pause, change, or cancel.²
• Notice if the price changes. If the Subscribe & Save price changes, we email you at least 7 days before the new price takes effect, and you can cancel before the next ship date. A shipment already billed before the change keeps its original price.²
• The price is visible in your account. The price applied to your next shipment is always shown in your account dashboard before it ships.²

The 7-day Trial Pack is a paid product, not a trial enrollment. Our Subscribe & Save Policy has a separate section for promotional enrollments such as a $1 trial or a first-month-free offer. Those bill at the standard Subscribe & Save price at the next scheduled ship date unless you cancel first, with a reminder email at least 3 days before that charge.²

How Does Delivery Work After the First Shipment?

Shipping works the same way for first orders and renewals. We ship to addresses in the United States and U.S. territories, with free shipping on every U.S. order, no minimum, and no extra fee for subscription renewals.³

Orders typically process within 1 to 2 business days after payment, and orders placed after 12:00 PM Pacific Time may process the next business day. Delivery then typically takes 3 to 7 business days. We ship from fulfillment centers in Chino, California, and Bordentown, New Jersey, so most U.S. addresses receive orders in 3 to 5 business days.³ Your tracking page may list the carrier as YunExpress before the package hands off to USPS for final delivery. It's the same shipment.³

For subscriptions, you choose a cadence of every 30, 60, or 90 days, and your cadence and next ship date are always visible in your account.² From the account dashboard, you can:²

• Skip a shipment
• Pause indefinitely and resume later
• Switch between 30, 60, and 90 days
• Swap products or change size
• Update your payment method or address

Changes apply to your next shipment as long as you make them before that shipment is billed.² At two sachets a day, a 30-sachet box lasts about 15 days, so match your supply size to the interval you pick.

How Do You Cancel or Skip a Subscription?

You can cancel at any time, with no fee, no phone call, and no minimum number of shipments.² There are two ways to do it:²

1. Self-service, any time. Log in at wonderbiotics.com/account, open "Subscribe & Save," select the subscription, and click "Cancel Subscription." You'll see an on-screen confirmation and get a confirmation email.
2. Email. Send a message to contact@wonderbiotics.com with the subject "Cancel Subscription," plus your order number or account email. We confirm by reply within 1 business day. A request sent outside business hours counts as received on the day you sent it, as long as the next shipment hasn't been billed yet.

Cancellation takes effect as soon as we receive it, and no further shipments are billed or sent for that subscription.²

Cancelling and getting a refund are two separate steps. Cancelling stops future shipments. A shipment that was already billed and shipped before your request is a completed purchase, and the Refund Policy decides what happens to it.¹,² Check the next ship date in your account and cancel or skip before that shipment is billed.

What Refunds Apply to Renewals and Later Orders?

For any Subsequent Order, the dividing line is shipment. "Shipped" means the order has been handed to the carrier and a tracking number exists.¹

Before it ships: you can cancel a Subsequent Order at any time for a 100% refund, including the product price, shipping fees, and applicable taxes.¹ For a one-time order, email us your order number as soon as possible. For a subscription order, cancel or skip the upcoming renewal from your account or by email, and any charge already taken for an unshipped order is refunded in full.¹

After it ships, refunds on Subsequent Orders are limited to these situations:¹

• Damaged or defective products: report within 14 days of delivery with your order number and clear photos of the product, packaging, and shipping label, and don't use the product. At our discretion, we'll replace the affected items or refund them in full.
• Shipments confirmed lost, meaning not delivered and not marked "Delivered" within 14 days of the ship date
• Orders processed even though you cancelled in time, before the order shipped
• Any other case where the law requires a refund

Damage and loss coverage applies to every order, first or later.¹ What doesn't carry over is the satisfaction refund. On Subsequent Orders, refunds generally aren't issued for personal preference, taste, flavor, or individual body reaction.¹ That's why the first order is the right time to settle questions about taste, mixing, and how your gut handles the fiber.

When a refund is approved, we respond to requests within 1 business day, start the refund within 5 business days of approval and no later than 30 days after the original request, and send it back to your original payment method. Banks typically take another 3 to 10 business days to post it.¹ None of this limits the non-waivable rights you have under federal or state consumer protection law.¹

Which Way Should You Start?

Your first order depends on what you already know about your routine.

If you're unsure about taste or mixing, start with the 7-day Trial Pack. Seven sachets cover one week at one sachet a day, which is enough to test the taste, the mix in your usual drink, and whether the habit sticks.⁶ If it's your first order, the 90-day guarantee covers it. If you subscribe afterward, plan on those shipments being Subsequent Orders.

If you already know you'll take fiber daily, a first subscription shipment gets you the Subscribe & Save price from the start. If it's your first order, you have 90 days from delivery to request a satisfaction refund of the product price, which leaves time to judge taste and tolerance. Before the next ship date in your account, decide whether to continue, skip, or cancel.

If you'd rather avoid recurring billing, one-time boxes give you full control over each purchase. Only the first one carries the 90-day guarantee.

Whichever you choose, give your gut time to adjust. Increasing fiber can temporarily cause gas or bloating, so start with one sachet a day mixed into 12 to 16 oz of water or another beverage, drink enough fluid, and increase gradually.⁶ Tolerance varies. Do not keep increasing the amount or push through worsening symptoms.⁵ If symptoms are persistent or severe, reduce the amount and speak with a healthcare provider.⁶

Daily Fiber Mix is a dietary supplement that supports your daily fiber intake. It isn't intended to diagnose, treat, cure, or prevent any disease.¹ Check with your doctor before starting any supplement if you're pregnant, nursing, taking medication, or managing a medical condition.⁴ If you take a GLP-1 medication, don't change your dose on your own; bring any digestive changes to your prescriber.

What Should You Check on Any Fiber Subscription?

These questions apply to any brand, not just ours. Federal law on online negative option sales, the Restore Online Shoppers' Confidence Act (ROSCA), requires sellers to clearly disclose all material terms before collecting billing information, get your express informed consent before charging you, and provide simple ways to stop recurring charges.⁸ Our Subscribe & Save Policy states its price-change commitment is made in compliance with ROSCA and California's Automatic Renewal Law.²

Before you subscribe anywhere, check the seller's terms on these points:

1. Which order does the satisfaction guarantee cover, and does it apply once per account?
2. What price will renewals charge after any first-order discount ends?
3. How often does it ship, and can you change the size or cadence?
4. Can you cancel online without a phone call, and when does cancellation take effect?
5. What refund applies to a renewal that has already shipped?

For WonderBiotics Daily Fiber Mix, the answers are in our Refund Policy and Subscribe & Save Policy, linked below. When you're ready, you can compare the Trial Pack, one-time boxes, and Subscribe & Save plans on the WonderBiotics Daily Fiber Mix product page.

References

1. WonderBiotics. Refund Policy. Last updated October 30, 2026.
2. WonderBiotics. Subscribe & Save Policy. Last updated October 30, 2026.
3. WonderBiotics. Shipping Policy. Last updated May 20, 2026.
4. WonderBiotics. Terms and Conditions. Last updated May 21, 2026.
5. WonderBiotics. Daily Fiber Mix product page.
6. WonderBiotics. Daily Fiber Mix for bloating support.
7. WonderBiotics. Lab of Biotics: Daily Fiber Mix evidence and formula amounts.
8. Restore Online Shoppers' Confidence Act. 15 U.S.C. § 8403, Negative option marketing on the Internet.