Ortho Molecular D-Hist – Natural Allergy & Sinus Support Supplement
Ortho Molecular D-Hist – Natural Allergy & Sinus Support Supplement
Ortho Molecular D-Hist – Natural Allergy & Sinus Support Supplement
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Ortho Molecular

Ortho Molecular D-Hist – Natural Allergy & Sinus Support Supplement

$50.90
$50.90
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SKU:

Size: 120ct
Looking for an alternative to D-Hist?

Try Dr. Cori’s ClearHist™ — my own formula for daily histamine and immune support.

  • Fast and responsive support
Your Purchase Matters

Your purchase empowers our mission to prioritize natural products and lifestyle changes as the foundation of health, enabling us to create a greater impact in more lives.

Breathe easier with Ortho Molecular D-Hist — your go-to natural solution for seasonal allergies and sinus support.

Formulated with a potent blend of quercetin, N-acetyl cysteine (NAC), bromelain, and stinging nettle leaf, D-Hist helps regulate the body's natural histamine response and supports clear nasal passages and optimal respiratory function.

Whether you're dealing with seasonal allergies, environmental irritants, or looking for a non-drowsy alternative to over-the-counter antihistamines, D-Hist offers professional-grade relief without the unwanted side effects.

Key Benefits:

  • ✅ Supports Healthy Histamine Response
    Helps modulate the body’s natural reaction to allergens without causing drowsiness.

  • ✅ Promotes Clear Nasal Passages
    Reduces sinus pressure and congestion for easier breathing during allergy season.

  • ✅ Powerful Antioxidant Support
    Contains quercetin and NAC to combat oxidative stress and support immune balance.

  • ✅ Fast-Acting & Practitioner-Trusted
    Widely recommended by functional medicine professionals for targeted allergy support.

  • ✅ Ideal for Seasonal or Year-Round Use
    Effective for both acute allergy flare-ups and ongoing environmental sensitivities.

Key Ingredients:

  • Quercetin – A natural flavonoid that stabilizes mast cells and regulates histamine release.

  • Stinging Nettle Leaf – Traditionally used to reduce inflammation and ease allergy symptoms.

  • N-Acetyl Cysteine (NAC) – Supports antioxidant activity and clears mucus from airways.

  • Bromelain – A natural enzyme from pineapple that promotes sinus drainage and reduces inflammation.

Suggested Use:

Take 2 capsules three times daily for 7–10 days, then reduce to 2 capsules daily or as recommended by your healthcare professional.

Free From:

Gluten, dairy, soy, artificial colors, and preservatives.

Who It's For:

Perfect for individuals looking for a natural, non-sedating alternative to traditional allergy medications — especially helpful for adults dealing with seasonal allergies, sinus congestion, or histamine intolerance.

  • 5 stars: 15 (94%)
  • 4 stars: 1 (6%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
A
Anonymous
Great natural product to replace daily antihistamines

Great natural product to replace daily antihistamines. I took prescribed antihistamines daily for years to treat seasonal allergies. I also felt fatigued and felt like they dryed out my sinuses too much.. I think DHist is not only keeping my allergy flare ups at bay it is also helping me build an immunity to the allergies. I feel so much better and highly recommend this product!

Hi there! We're thrilled to hear that D-Hist is making such a positive difference for you. Thanks so much for sharing your experience and for recommending us. Wishing you continued health and allergy relief!

P
Patricia Telesz
Works great; I don’t need Claritin

Works great; I don’t need Claritin anymore

Hi Patricia, we're thrilled to hear that D-Hist is helping you avoid Claritin! Thanks for sharing your experience. Wishing you continued relief!

A
Anonymous
D-Hist helps me breathe easy while sleeping

D-Hist helps me breathe easy while sleeping.

Thank you for sharing your experience with D-Hist! We're glad to hear that it's helping you breathe easy while sleeping. We appreciate your support and hope it continues to provide improvement for you. Have a great day!

A
Anonymous
Good product which I use for allergies (test well) and best pricing

Good product which I use for allergies (test well) and best pricing.

Thank you for your kind review! We're thrilled that D-Hist has helped with your allergies and that you found our pricing to be the best. We appreciate your support and hope to continue providing effective products for your health needs.

A
Anonymous
I love it! It works! I have much less severe and much less allergies in general

I love it! It works! I have much less severe and much less allergies in general.

Hi there! Thank you for your kind words and for sharing your positive experience with D-Hist. We're thrilled to hear that it has been effective in reducing your allergies. We hope you continue to enjoy the benefits of our product. Have a great day!

A
Anonymous
When I was dealing with histamine issues in the past

When I was dealing with histamine issues in the past, this product really worked and I am currently taking it on a regular basis

Thank you for sharing your positive experience with D-Hist! We're glad to hear that its been helpful in addressing your histamine issues. We hope it continues to provide you with relief on a regular basis. Thank you for choosing DrCori.com

S
Sally W
Works great.

I just reordered these. They are working really well and I can finally breathe again.

Thank you for sharing your positive experience with D-Hist! We're thrilled to hear that it's working well for you and helping you breathe easier. We appreciate your continued support and hope it continues to provide relief for your allergies and sinus issues. Thank you for shopping on DrCori.com!

J
Jay K Harris
I think it’s very good

I think it’s very good. Thanks!

Thank you for your positive feedback! We are glad to hear that you find our product beneficial. We appreciate your support and hope it continues to provide relief for your allergies and sinus issues. Thank you for choosing DrCori.com!

A
Anonymous
D-Hist worked great in relieving itching due to alleergies

D-Hist worked great in relieving itching due to alleergies.

Hi there,

Thank you for leaving a review for D-Hist! We are thrilled to hear that our product was able to provide relief for your allergies and alleviate your itching. We appreciate your support and hope that D-Hist continues to work well for you in the future.

Best,
Dr. Cori and Team

T
Tracye Ziglar
D-Hist is amazing!

D-Hist is amazing! I have been on Claritin-D for decades and this has provided me relief in areas that could not be treated! I only need the Claritin occasionally now, and am also only needing the D-Hist at a preventative dose!

Thank you for your kind words and for sharing your experience with D-Hist! We are so glad to hear that our product has provided you with effective relief for your allergies and sinus issues. We strive to provide natural solutions that can make a positive impact on our customers' health. Thank you for choosing DrCori.com and we hope to continue to be a helpful resource for you in the future.

A
Anonymous
Helps with my seasonal

Helps with my seasonal allergies!

Thank you for your positive feedback! We are delighted to hear that D-Hist has helped with your seasonal allergies. We hope to continue providing you with effective and natural support. Thank you for choosing DrCori.com!

P
Priscilla A Ryland
Ortho Molecular D-Hist Review

I think it is helping but waiting for full effects of supplement.

Thank you for taking the time to leave a review for Ortho Molecular D-Hist. We are glad to hear that you are already seeing some benefits from the supplement. As with any supplement, it may take some time for the full effects to be felt. We appreciate your patience and hope that you continue to experience positive results. Thank you for choosing to order from DrCori.com for your allergy and sinus support needs.

G
Glory
Daily Staple.

I’ve taken this every day for a couple of years and it has kept me from getting sinus infections. It’s great, no side effects. I highly recommend this product.

Hi there, thank you for sharing your positive experience with D-Hist! We're thrilled to hear that it has become a daily staple for you and has helped prevent sinus infections. Your recommendation means a lot to us. Thank you for choosing to order from DrCori.com!

A
Anonymous
I’ve been using this for years

I’ve been using this for years. It does help a little. I can’t take regular allergy pills so this is my option.

Hi there! Thank you for taking the time to leave us a review. We're glad to hear that D-Hist has been helping you with your allergies for years. We understand that pharmaceuticals can have unwanted side effects so we're happy to hear that this is a good option for you. If you ever have any questions or concerns, please don't hesitate to reach out to us. Take care!

T
Tracey

Love great affordable price very happy will order again

L
Laura
Great for Allergy Control

I relied on a prescription medication (later available over-the-counter) daily for nearly 30 years before learning about D-Hist from Dr. Cori. Now, I take two capsules a day for preventive support, and it works wonderfully. I no longer need pharmaceuticals to manage my seasonal and pet dander allergies.

Hi there! Thank you for taking the time to leave us a review. We're so happy to hear that D-Hist has been working wonderfully for you and has helped you manage your allergies without relying on prescription medication. We're glad to be a part of your preventive support routine. Thank you for choosing drcori.com for your supplement orders!

Customers are saying

4.92 ★ (171)
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  • 5 stars: 15 (94%)
  • 4 stars: 1 (6%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
A
Anonymous
Great natural product to replace daily antihistamines

Great natural product to replace daily antihistamines. I took prescribed antihistamines daily for years to treat seasonal allergies. I also felt fatigued and felt like they dryed out my sinuses too much.. I think DHist is not only keeping my allergy flare ups at bay it is also helping me build an immunity to the allergies. I feel so much better and highly recommend this product!

Hi there! We're thrilled to hear that D-Hist is making such a positive difference for you. Thanks so much for sharing your experience and for recommending us. Wishing you continued health and allergy relief!

P
Patricia Telesz
Works great; I don’t need Claritin

Works great; I don’t need Claritin anymore

Hi Patricia, we're thrilled to hear that D-Hist is helping you avoid Claritin! Thanks for sharing your experience. Wishing you continued relief!

A
Anonymous
D-Hist helps me breathe easy while sleeping

D-Hist helps me breathe easy while sleeping.

Thank you for sharing your experience with D-Hist! We're glad to hear that it's helping you breathe easy while sleeping. We appreciate your support and hope it continues to provide improvement for you. Have a great day!

A
Anonymous
Good product which I use for allergies (test well) and best pricing

Good product which I use for allergies (test well) and best pricing.

Thank you for your kind review! We're thrilled that D-Hist has helped with your allergies and that you found our pricing to be the best. We appreciate your support and hope to continue providing effective products for your health needs.

A
Anonymous
I love it! It works! I have much less severe and much less allergies in general

I love it! It works! I have much less severe and much less allergies in general.

Hi there! Thank you for your kind words and for sharing your positive experience with D-Hist. We're thrilled to hear that it has been effective in reducing your allergies. We hope you continue to enjoy the benefits of our product. Have a great day!

A
Anonymous
When I was dealing with histamine issues in the past

When I was dealing with histamine issues in the past, this product really worked and I am currently taking it on a regular basis

Thank you for sharing your positive experience with D-Hist! We're glad to hear that its been helpful in addressing your histamine issues. We hope it continues to provide you with relief on a regular basis. Thank you for choosing DrCori.com

S
Sally W
Works great.

I just reordered these. They are working really well and I can finally breathe again.

Thank you for sharing your positive experience with D-Hist! We're thrilled to hear that it's working well for you and helping you breathe easier. We appreciate your continued support and hope it continues to provide relief for your allergies and sinus issues. Thank you for shopping on DrCori.com!

J
Jay K Harris
I think it’s very good

I think it’s very good. Thanks!

Thank you for your positive feedback! We are glad to hear that you find our product beneficial. We appreciate your support and hope it continues to provide relief for your allergies and sinus issues. Thank you for choosing DrCori.com!

A
Anonymous
D-Hist worked great in relieving itching due to alleergies

D-Hist worked great in relieving itching due to alleergies.

Hi there,

Thank you for leaving a review for D-Hist! We are thrilled to hear that our product was able to provide relief for your allergies and alleviate your itching. We appreciate your support and hope that D-Hist continues to work well for you in the future.

Best,
Dr. Cori and Team

T
Tracye Ziglar
D-Hist is amazing!

D-Hist is amazing! I have been on Claritin-D for decades and this has provided me relief in areas that could not be treated! I only need the Claritin occasionally now, and am also only needing the D-Hist at a preventative dose!

Thank you for your kind words and for sharing your experience with D-Hist! We are so glad to hear that our product has provided you with effective relief for your allergies and sinus issues. We strive to provide natural solutions that can make a positive impact on our customers' health. Thank you for choosing DrCori.com and we hope to continue to be a helpful resource for you in the future.

A
Anonymous
Helps with my seasonal

Helps with my seasonal allergies!

Thank you for your positive feedback! We are delighted to hear that D-Hist has helped with your seasonal allergies. We hope to continue providing you with effective and natural support. Thank you for choosing DrCori.com!

P
Priscilla A Ryland
Ortho Molecular D-Hist Review

I think it is helping but waiting for full effects of supplement.

Thank you for taking the time to leave a review for Ortho Molecular D-Hist. We are glad to hear that you are already seeing some benefits from the supplement. As with any supplement, it may take some time for the full effects to be felt. We appreciate your patience and hope that you continue to experience positive results. Thank you for choosing to order from DrCori.com for your allergy and sinus support needs.

G
Glory
Daily Staple.

I’ve taken this every day for a couple of years and it has kept me from getting sinus infections. It’s great, no side effects. I highly recommend this product.

Hi there, thank you for sharing your positive experience with D-Hist! We're thrilled to hear that it has become a daily staple for you and has helped prevent sinus infections. Your recommendation means a lot to us. Thank you for choosing to order from DrCori.com!

A
Anonymous
I’ve been using this for years

I’ve been using this for years. It does help a little. I can’t take regular allergy pills so this is my option.

Hi there! Thank you for taking the time to leave us a review. We're glad to hear that D-Hist has been helping you with your allergies for years. We understand that pharmaceuticals can have unwanted side effects so we're happy to hear that this is a good option for you. If you ever have any questions or concerns, please don't hesitate to reach out to us. Take care!

T
Tracey

Love great affordable price very happy will order again

L
Laura
Great for Allergy Control

I relied on a prescription medication (later available over-the-counter) daily for nearly 30 years before learning about D-Hist from Dr. Cori. Now, I take two capsules a day for preventive support, and it works wonderfully. I no longer need pharmaceuticals to manage my seasonal and pet dander allergies.

Hi there! Thank you for taking the time to leave us a review. We're so happy to hear that D-Hist has been working wonderfully for you and has helped you manage your allergies without relying on prescription medication. We're glad to be a part of your preventive support routine. Thank you for choosing drcori.com for your supplement orders!