OLLEREG — Developed by a Board-Certified Allergist
Board-Certified Allergist Formulated

Allergist-Developed Allergy Sprays — Delivered to Your Door

OLLEREG sublingual immunotherapy spray is the same science as allergy shots — formulated by Dr. Dat Tran, MD, FAAAAI, and shipped straight to you. Two sprays, once a day. No clinic visits.

Allergist-Developed Allergy Sprays
500+ families breathing easier · 90-day money-back guarantee · Free shipping
Dr. Dat Tran, MD, FAAAAI

Dr. Dat Tran, MD, FAAAAI

Board-Certified Allergist & Immunologist · Houston, TX

“Allergy shots work, but most people can’t commit to weekly clinic visits for three to five years. OLLEREG uses the same immunological mechanism in a sublingual format you can take at home in under a minute.”
FAAAAI Fellow NIH Trained Board Certified 15+ Years Practice
As Seen on Fox 26 Houston

Answer 4 Quick Questions

Question 1 of 4

What type of allergies do you deal with?

Have you tried immunotherapy before?

What’s held you back from treatment?

How long have you been dealing with allergies?

As Seen On Fox 26
Fox 26 Houston
~80%
of patients see meaningful relief
30+
years of OIT science worldwide
★★★★★
“As a nurse, I appreciate that this is real immunotherapy, not a supplement. Dr. Tran’s credentials gave me confidence to try it.”
— Linda P., San Antonio TX
★★★★★
“I did allergy shots for 2 years and quit because of the drive. OLLEREG gives me the same treatment at home.”
— Ashley M., Austin TX

Compare Your Options

RecommendedOLLEREG OTC Medications Allergy Shots
Treats root cause
No clinic visits
No needles
Safe for ages 3+ Varies
Doctor-developed Varies
Builds lasting tolerance
Typical annual cost From $300/yr $200–360/yr $1,500–4,000/yr

Frequently Asked Questions

OLLEREG is real immunotherapy, not a supplement. It uses FDA-regulated allergen extracts — the same ones allergists use for subcutaneous immunotherapy (allergy shots). Unlike antihistamines that mask symptoms, OLLEREG retrains your immune system at the source.
OTC medications like Claritin, Zyrtec, and Flonase only block symptoms temporarily. When you stop taking them, the allergies come right back. OLLEREG is immunotherapy — it gradually changes how your immune system responds, building lasting tolerance over 3+ years.
Dr. Dat Tran, MD, FAAAAI — a board-certified allergist and immunologist who completed advanced training at the National Institutes of Health. He founded Innovative Allergy in Houston, TX, and developed OLLEREG to make clinical-grade immunotherapy accessible to anyone, anywhere.
OLLEREG comes with a 90-day money-back guarantee. Use it consistently for 90 days, and if you’re not satisfied, we’ll refund you in full.

Trust the Science. Start Today.

Doctor-formulated. Clinically studied mechanism backed by 30+ years of published research. Delivered to your door.

Get Started — From $25/month

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Get Started — From $25/month