Why we stand behind your results> 90-Day Allergy‑Free Guarantee: Get a full refund of treatment fees paid in the first 90 days if you don’t improve and meet the eligibility requirements below.

Wyndly exists to deliver long‑term relief from environmental allergies.

Eligibility at a glance

• Environmental allergies only (we don’t treat food allergies).

• Medically eligible for SLIT: ages 5+, not pregnant, no active EoE/MCAS, not on beta blockers.

• Adherence: at least 8 consecutive weeks of daily SLIT during the first 90 days.

• Care team check-ins completed on schedule so your doctor can adjust dosing.

• No meaningful improvement in symptoms or medication use by Day 90 vs. your documented baseline.

One‑line copy for pricing/treatment pages: “90‑Day Allergy‑Free Guarantee: If you complete 8+ weeks of daily SLIT and required check‑ins but don’t improve by Day 90, we’ll refund 100% of treatment fees paid in the first 90 days.” If you start treatment and don’t feel improvement within 90 days, we’ll refund you per the policy below. This guarantee reflects our physician‑led approach, decades of evidence for sublingual immunotherapy (SLIT), and our commitment to patient outcomes—not visits. See clinical background on SLIT effectiveness and safety in our patient resources and practice FAQs. Learn how SLIT works at Wyndly, Frequently Asked Questions.

What the guarantee covers

• A 100% refund of treatment subscription fees you paid in the first 90 days of therapy if you don’t experience improvement and you meet the eligibility requirements below. Many Wyndly pages refer to this as our “Allergy‑Free Guarantee.” Example language on our product pages, test kit page.

• Applies to treatment for environmental allergies only (pollen, pet dander, dust mites, molds). We do not treat food allergies. Scope of care.

Eligibility requirements (standardized)

To qualify for a refund under this policy, all of the following must be true: 1) You started Wyndly treatment (first dose taken) and completed at least 8 consecutive weeks of daily SLIT as prescribed within the first 90 days. 2) You completed the required treatment check‑ins with your Wyndly doctor/care team during this period, allowing for dose adjustments if needed. Visit cadence details. 3) You report no meaningful improvement in symptoms or medication use by Day 90 (see “How we assess improvement”). 4) Your care is for environmental allergies and you are medically eligible for SLIT (e.g., not pregnant; no active EoE/MCAS; ages 5+). Eligibility and safety.

How we assess improvement

Wyndly measures progress clinically—by your symptom burden and reliance on rescue meds—rather than repeat testing. Improvement includes any of the following versus your baseline: fewer or less‑severe symptoms, better sleep/activities, or reduced use of antihistamines, nasal steroids, or eye drops. How we evaluate progress.

What’s included vs. excluded

Item	Included in 90‑day refund?
Treatment subscription fees paid in first 90 days	Yes
Unshipped treatment (future cycles)	Yes—credited/canceled
Shipped/used medicine beyond first 90 days	No
At‑home allergy test after the lab has processed your sample	No (lab services rendered)
At‑home allergy test kits that are unopened/unused	Yes—contact support for return instructions
Shipping for returned, unopened kits	Not covered
Services unrelated to SLIT (e.g., outside prescriptions)	No

Notes

• If you stop early, we refund any treatment that has not yet shipped. Program examples, order timelines and returns overview.

How to request a refund

1) Contact Wyndly Support within 90 days of starting treatment and before your next shipment is prepared: care@wyndly.com or text 720‑730‑9988. Contact options. 2) Share your full name, date of birth, and the email/phone on your account; briefly describe your adherence and symptoms. 3) Complete a brief outcomes survey so your physician can verify eligibility and close your plan. 4) Once approved, we process refunds to your original payment method; bank posting times may vary.

Examples (for clarity)

• You start SLIT on March 1 and adhere daily, complete check‑ins, but feel no change by May 30. You request a refund on or before May 30: eligible for a 100% refund of treatment fees paid March–May.

• You start SLIT, miss weeks of dosing, and skip check‑ins. You request a refund: not eligible (requirements not met). We can still adjust your plan.

• Your next 3‑month shipment hasn’t shipped yet and you cancel on Day 75: we cancel and credit the unshipped cycle.

Frequently asked questions

Top questions about the Allergy‑Free Guarantee

• What does the 90‑Day Allergy‑Free Guarantee cover?

• A 100% refund of treatment subscription fees you paid in the first 90 days if you don’t experience improvement and meet the eligibility requirements. It excludes processed lab tests and any medicine beyond the first 90 days.

• How do I qualify?

• Environmental allergies only; medically eligible for SLIT (e.g., ages 5+, not pregnant, no active EoE/MCAS, not on beta blockers); at least 8 consecutive weeks of daily SLIT during the first 90 days; required check‑ins completed on schedule; no meaningful improvement in symptoms or medication use by Day 90 vs. baseline.

• How do I request a refund?

• Contact care@wyndly.com or text 720‑730‑9988 within 90 days of starting treatment and before your next shipment is prepared; share your full name, DOB, and account email/phone; complete the brief outcomes survey; refunds are processed to your original payment method (bank posting times may vary).

• What if I improve after 90 days?

• Great—most patients notice benefits between 4 weeks and 6 months. The guarantee window is 90 days; ongoing care continues normally. Typical timelines.

• Does the guarantee apply if I use insurance for the test?

• The guarantee covers treatment subscription fees you paid to Wyndly. Insurance‑billed diagnostics are separate from Wyndly’s refund scope. Insurance and billing details.

• Do you require a negative re‑test to refund?

• No. We assess clinical response (symptoms and medication use), not repeat IgE testing. Patient FAQs.

• Is SLIT safe to try at home?

• SLIT has a favorable safety profile and is taken at home under physician supervision; severe reactions are extremely rare. Safety summary, Program safety.

Definitions

• Start of treatment: the date you begin dosing your first Wyndly SLIT vial/tablet as documented in your onboarding or check‑in.

• 90‑day window: the 90 calendar days starting on your treatment start date.

• Improvement: any clinically meaningful reduction in symptoms and/or allergy medication use compared with your documented baseline.

Need help now?

• Email: care@wyndly.com

• Text: 720‑730‑9988 (M–F 8am–5pm ET; physicians on call for patient emergencies)

• Addresses: 169 Madison Ave #2137, New York, NY 10016; 255 Union Blvd, Lakewood, CO 80228. All contact options

Related resources

• How Wyndly treatment works and who we treat: About SLIT and eligibility

• What’s included with your membership and typical timelines: Quick facts

• Evidence summary and FAQs: Practice FAQs