---
product_id: 254120216
title: "LES Labs Sinus & Seasonal, Sinus Relief & Seasonal Discomfort Supplement for Healthy Histamine Levels, Respiratory & Nasal Health with Butterbur, Quercetin & Nettle Root, 60 Capsules"
brand: "les labs"
price: "686 kr"
currency: DKK
in_stock: true
reviews_count: 5
category: "Les Labs"
url: https://www.desertcart.dk/products/254120216-les-labs-sinus-and-seasonal-sinus-relief-and-seasonal-discomfort
store_origin: DK
region: Denmark
---

# Natural, drug-free formula Enhances respiratory & nasal health Supports healthy immune response LES Labs Sinus & Seasonal, Sinus Relief & Seasonal Discomfort Supplement for Healthy Histamine Levels, Respiratory & Nasal Health with Butterbur, Quercetin & Nettle Root, 60 Capsules

**Brand:** les labs
**Price:** 686 kr
**Availability:** ✅ In Stock

## Summary

> 🌿 Unlock natural sinus relief and breathe your best every season!

## Quick Answers

- **What is this?** LES Labs Sinus & Seasonal, Sinus Relief & Seasonal Discomfort Supplement for Healthy Histamine Levels, Respiratory & Nasal Health with Butterbur, Quercetin & Nettle Root, 60 Capsules by les labs
- **How much does it cost?** 686 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/254120216-les-labs-sinus-and-seasonal-sinus-relief-and-seasonal-discomfort)

## Best For

- les labs enthusiasts

## Why This Product

- Trusted les labs brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seasonal Shield:** Reduces seasonal discomfort with potent botanical extracts
- • **Clean, Safe & Pure:** Butterbur extract certified PA-free for liver-safe relief
- • **Immune Balance Boost:** Quercetin supports a healthy, balanced immune response
- • **Breathe Easy, Live Fully:** Promotes clear sinus & nasal passages without drowsiness
- • **Daily Defense, Simplified:** Convenient once or twice daily capsules for sustained relief

## Overview

LES Labs Sinus & Seasonal is a premium, natural supplement designed to support sinus, nasal, and respiratory health. Featuring a drug-free blend of butterbur (PA-free), quercetin, nettle root, and bromelain, it helps reduce seasonal discomfort and promotes healthy histamine levels. Ideal for adults seeking gentle, effective relief without drowsiness, this 60-capsule formula supports immune balance and enhances breathing quality, making it a must-have for managing seasonal allergies and sinus challenges naturally.

## Description

SUPPORTS SINUS & NASAL HEALTH. Natural drug-free formula promotes sinus and nasal health and will not cause drowsiness. HELPS REDUCE SEASONAL DISCOMFORT. Nettle root, quercetin, bromelain, and butterbur extracts (free of pyrrolizidine alkaloids) help to reduce seasonal discomfort and regulate healthy histamine levels. NATURAL FORMULA FOR RESPIRATORY HEALTH. Natural ingredients support respiratory health for sinus sufferers and help improve breathing quality. PROMOTES HEALTHY IMMUNE RESPONSE. Quercetin helps to promote a healthy and balanced immune response.

Review: I had absolutely no idea this wonderful product existed until I got a really bad case of the flu this past March. I had a severe sinus infection along with post nasal dripping that was constantly draining into my throat, which caused me to have bronchitis. Not to mention constant sinus pressure in my forehead all day long to where my poor body just couldn't rest. I went to see a primary care physician two different times and I had to take two different antibiotics to clear up the yellow mucus I was having to constantly spit up. I even irrigated my nose with Nasaline and the salt, which kind of helped. But it did dry out my nasal passages even more. I suffer from a nasal trauma called ENS/Empty Nose Syndrome. An ENT doctor I had trusted about 12 years ago said I would breathe better and have less sinus infections if he reduced my inferior turbinates, which is your nose's first line of defense against anything you inhale and it's a vital organ that moisturizes the air that goes into your lungs. The tubinates also provide moisture in your nose and keep the mucus flowing in the proper direction. I started taking vitamins in my late 20's and even more now into my 30's. Because I take really good quality vitamins for a variety of things, I like to sometimes get them on desertcart. While I was searching for a vitamin that I normally take, I accidentally discovered Sinus & Seasonal/LES Labs. While I was still lying in bed sick, I read all the reviews, which were extremely helpful as always, which is why I love desertcart so much!!! All the excellent reviews I had read is what persuaded me to immediately purchase this product. My only recommendation is that if you are a sinus sufferer like myself to stay away from milk or dairy as much as possible or at least in moderate use. But definitely drink lots of water on a daily basis, especially while taking this supplement. It really does work and I have found it to be very gentle on my poor nose. I only take one capsule a day and that's good for me, but I suggest try taking one capsule for a few days and see if you need to take two. Everyone is different, so it just depends on the individual. I will definitely be a loyal customer to Sinus & Seasonal/LES Labs. I am so extremely grateful for this product!! Thank you so much LES Labs for your Sinus & Seasonal supplement has helped me heal after the antibiotics I took. Just a great addition towards keeping my sinuses healthy!!
Review: I should preempt my review by saying that I am not a doctor, and you should consult consider consulting with one before taking any supplement. With that said, I pay close attention to what I consume/put in my body and felt confident with the LES Sinus & Nasal Health, Seasonal Discomfort and Histamine Control Supplement. I am fortunate enough not to have severe allergies, but this spring was rough in terms of pollen + I was doing some projects in the house that kicked up a lot of dust and indoor allergens. I developed a pretty persistent nasal drip, combined with frequent sneezing and night-time stuffiness. Whenever possible I prefer natural solutions over things I can't pronounce (i.e. the active ingredient in pretty much anything prescription). This is what I found when searching for natural sinus relief: Nettle Root: "Stinging nettle contains ingredients that might decrease inflammation..." "The above-ground parts are also used for allergies, hayfever, and osteoarthritis." Source: WebMD. Note: "Stinging nettle is used for many conditions, but so far, there isn’t enough scientific evidence to determine whether or not it is effective for any of them." "Quercetin is a plant pigment (flavonoid). It is found in many plants and foods, such as red wine, onions, green tea, apples, berries, Ginkgo biloba, St. John's wort, American elder, and others. Buckwheat tea has a large amount of quercetin." "Quercetinhas antioxidant and anti-inflammatory effects which might help reduce prostate inflammation." Source: WebMD "Bromelain is an enzyme found in pineapple juice and in the pineapple stem. People use it for medicine." "Bromelain is used for reducing swelling (inflammation), especially of the nose and sinuses, after surgery or injury. It is also used for hay fever..." "Bromelain seems to cause the body to produce substances that fight pain and swelling (inflammation). Bromelain also contains chemicals that interfere with the growth of tumor cells and slow blood clotting." Source: WebMD "Butterbur is an herb. People use the leaf, root, and bulb to make medicine. Some butterbur preparations contain chemicals called pyrrolizidine alkaloids (PAs), which can damage the liver and cause other serious harm. Only butterbur products that are certified and labeled “PA-free” should be used." "Butterbur contains chemicals that might relieve spasms and decrease swelling (inflammation)." Source: WebMD. With those 4 products in mind, I was delighted to find the PA free LES Sinus and Allergy product. Win! The pills are small and easy to swallow. They are "gel caps" so if you have trouble with pills I guess you could open them and poor them into a drink or over food. The bottle recommends taking 1 pill 2-3 times a day. I took 1 pill morning and evening for about 2 weeks and then cut back to 1 pill. It seems you need to allow some time for the ingredients to accumulate in your system. I noticed no IMMEDIATE relief, but stuck with it and after about 2 weeks things were materially better. I also noticed that after two weeks I was able to drop down to 1 pill a day to maintain the benefit. If I stopped taking the pill for a day or 2 my symptoms would worsen somewhat. It's not a wonder drug but the best part is that it is not a drug. I very much recommend this natural ingredient allergy symptom relief,

## Features

- manufacturer: LES Labs
- Item Trademark: LES LABS
- Item Category: Nutritional Supplement

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00G9G16A2 |
| ASIN  | B00G9G16A2 |
| Age Range Description | Adult |
| Best Sellers Rank | #168,671 in Health ( See Top 100 in Health ) #4,082 in Multivitamins Nutritional Supplements |
| Brand | LES Labs |
| Customer Reviews | 4.1 4.1 out of 5 stars (2,602) |
| Customer reviews | 4.1 4.1 out of 5 stars (2,602) |
| Date First Available | 6 March 2014 |
| Format | Capsule |
| Is Discontinued By Manufacturer  | No |
| Manufacturer  | LES Labs |
| Manufacturer reference  | 2826636031 |
| Package Dimensions  | 10.8 x 5.6 x 5.2 cm; 0.28 g |
| Units | 60.0 Count |

## Product Details

- **Age range (description):** Adult
- **Brand:** LES Labs
- **Flavour:** Unflavored
- **Item form:** Capsule
- **Product benefits:** Allergy Relief, Nasal & Sinus Health, Histamine Support

## Images

![LES Labs Sinus & Seasonal, Sinus Relief & Seasonal Discomfort Supplement for Healthy Histamine Levels, Respiratory & Nasal Health with Butterbur, Quercetin & Nettle Root, 60 Capsules - Image 1](https://m.media-amazon.com/images/I/61qlhpWY6lL.jpg)
![LES Labs Sinus & Seasonal, Sinus Relief & Seasonal Discomfort Supplement for Healthy Histamine Levels, Respiratory & Nasal Health with Butterbur, Quercetin & Nettle Root, 60 Capsules - Image 2](https://m.media-amazon.com/images/I/61xEEB3N3LL.jpg)
![LES Labs Sinus & Seasonal, Sinus Relief & Seasonal Discomfort Supplement for Healthy Histamine Levels, Respiratory & Nasal Health with Butterbur, Quercetin & Nettle Root, 60 Capsules - Image 3](https://m.media-amazon.com/images/I/71BQ92CeOHL.jpg)
![LES Labs Sinus & Seasonal, Sinus Relief & Seasonal Discomfort Supplement for Healthy Histamine Levels, Respiratory & Nasal Health with Butterbur, Quercetin & Nettle Root, 60 Capsules - Image 4](https://m.media-amazon.com/images/I/71OxxwU6lLL.jpg)
![LES Labs Sinus & Seasonal, Sinus Relief & Seasonal Discomfort Supplement for Healthy Histamine Levels, Respiratory & Nasal Health with Butterbur, Quercetin & Nettle Root, 60 Capsules - Image 5](https://m.media-amazon.com/images/I/81kOfiwxc+L.jpg)

## Questions & Answers

**Q: Does the butterbur in Sinus & Seasonal contain pyrrolizidine alkaloids (PAs)?**
A: No, it is completely PA-free! Our butterbur is carefully processed to ensure purity and safety.

**Q: Can Sinus & Seasonal Support be used daily?**
A: Yes, this formula is designed for daily use to help manage seasonal changes and maintain long-term sinus health. It is particularly beneficial for individuals sensitive to pollen, dust, and other environmental triggers.

**Q: How soon can results be expected?**
A: Many users report improved sinus clarity, reduced nasal congestion, and better overall comfort within a few days of consistent use. For optimal results, it is best to take Sinus & Seasonal Support before peak allergy season.

**Q: Is this supplement safe for long-term use?**
A: Yes, all ingredients are naturally derived and non-drowsy, making this a safe and effective alternative to traditional seasonal relief medications.

**Q: Does this product help with non-seasonal sinus issues?**
A: Yes! While designed for seasonal allergies, its anti-inflammatory and mucus-clearing properties can also support year-round sinus health for those sensitive to dust, pet dander, and environmental pollutants.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***S on 19 April 2017*

I had absolutely no idea this wonderful product existed until I got a really bad case of the flu this past March. I had a severe sinus infection along with post nasal dripping that was constantly draining into my throat, which caused me to have bronchitis. Not to mention constant sinus pressure in my forehead all day long to where my poor body just couldn't rest. I went to see a primary care physician two different times and I had to take two different antibiotics to clear up the yellow mucus I was having to constantly spit up. I even irrigated my nose with Nasaline and the salt, which kind of helped. But it did dry out my nasal passages even more. I suffer from a nasal trauma called ENS/Empty Nose Syndrome. An ENT doctor I had trusted about 12 years ago said I would breathe better and have less sinus infections if he reduced my inferior turbinates, which is your nose's first line of defense against anything you inhale and it's a vital organ that moisturizes the air that goes into your lungs. The tubinates also provide moisture in your nose and keep the mucus flowing in the proper direction. I started taking vitamins in my late 20's and even more now into my 30's. Because I take really good quality vitamins for a variety of things, I like to sometimes get them on amazon. While I was searching for a vitamin that I normally take, I accidentally discovered Sinus & Seasonal/LES Labs. While I was still lying in bed sick, I read all the reviews, which were extremely helpful as always, which is why I love amazon so much!!! All the excellent reviews I had read is what persuaded me to immediately purchase this product. My only recommendation is that if you are a sinus sufferer like myself to stay away from milk or dairy as much as possible or at least in moderate use. But definitely drink lots of water on a daily basis, especially while taking this supplement. It really does work and I have found it to be very gentle on my poor nose. I only take one capsule a day and that's good for me, but I suggest try taking one capsule for a few days and see if you need to take two. Everyone is different, so it just depends on the individual. I will definitely be a loyal customer to Sinus & Seasonal/LES Labs. I am so extremely grateful for this product!! Thank you so much LES Labs for your Sinus & Seasonal supplement has helped me heal after the antibiotics I took. Just a great addition towards keeping my sinuses healthy!!

### ⭐⭐⭐⭐⭐ Review
*by B***R on 26 May 2015*

I should preempt my review by saying that I am not a doctor, and you should consult consider consulting with one before taking any supplement. With that said, I pay close attention to what I consume/put in my body and felt confident with the LES Sinus & Nasal Health, Seasonal Discomfort and Histamine Control Supplement. I am fortunate enough not to have severe allergies, but this spring was rough in terms of pollen + I was doing some projects in the house that kicked up a lot of dust and indoor allergens. I developed a pretty persistent nasal drip, combined with frequent sneezing and night-time stuffiness. Whenever possible I prefer natural solutions over things I can't pronounce (i.e. the active ingredient in pretty much anything prescription). This is what I found when searching for natural sinus relief: Nettle Root: "Stinging nettle contains ingredients that might decrease inflammation..." "The above-ground parts are also used for allergies, hayfever, and osteoarthritis." Source: WebMD. Note: "Stinging nettle is used for many conditions, but so far, there isn’t enough scientific evidence to determine whether or not it is effective for any of them." "Quercetin is a plant pigment (flavonoid). It is found in many plants and foods, such as red wine, onions, green tea, apples, berries, Ginkgo biloba, St. John's wort, American elder, and others. Buckwheat tea has a large amount of quercetin." "Quercetinhas antioxidant and anti-inflammatory effects which might help reduce prostate inflammation." Source: WebMD "Bromelain is an enzyme found in pineapple juice and in the pineapple stem. People use it for medicine." "Bromelain is used for reducing swelling (inflammation), especially of the nose and sinuses, after surgery or injury. It is also used for hay fever..." "Bromelain seems to cause the body to produce substances that fight pain and swelling (inflammation). Bromelain also contains chemicals that interfere with the growth of tumor cells and slow blood clotting." Source: WebMD "Butterbur is an herb. People use the leaf, root, and bulb to make medicine. Some butterbur preparations contain chemicals called pyrrolizidine alkaloids (PAs), which can damage the liver and cause other serious harm. Only butterbur products that are certified and labeled “PA-free” should be used." "Butterbur contains chemicals that might relieve spasms and decrease swelling (inflammation)." Source: WebMD. With those 4 products in mind, I was delighted to find the PA free LES Sinus and Allergy product. Win! The pills are small and easy to swallow. They are "gel caps" so if you have trouble with pills I guess you could open them and poor them into a drink or over food. The bottle recommends taking 1 pill 2-3 times a day. I took 1 pill morning and evening for about 2 weeks and then cut back to 1 pill. It seems you need to allow some time for the ingredients to accumulate in your system. I noticed no IMMEDIATE relief, but stuck with it and after about 2 weeks things were materially better. I also noticed that after two weeks I was able to drop down to 1 pill a day to maintain the benefit. If I stopped taking the pill for a day or 2 my symptoms would worsen somewhat. It's not a wonder drug but the best part is that it is not a drug. I very much recommend this natural ingredient allergy symptom relief,

### ⭐⭐⭐⭐ Review
*by J***Y on 21 April 2019*

Good news and bad news. My story: I spent YEARS trying to find some way to deal with spring, summer and fall allergies. My symptoms change, sometimes it's sinusitis, sometimes watery eyes, always a feeling of misery, fatigue, light fever, depression-like lethargy in the morning and early afternoon when my histamines are sucking the life out of me. All the usual things help a little and should not be discounted: I shower EVERY time I come inside, use saline solution twice a day, windows closed from March to November and air conditioning on on the most beautiful breezy days of the year (I waited 20 years to get an affordable apartment in Manhattan with cross-ventilation for this!) I have never been diagnosed and when I tell the doctor my symptoms he tells me how bad other people's are compared to mine and gives me my options -- antihistamines, nasal steroids, all the things that make me feel worse or do nothing. No one has researched allergies and what brings them on more than I have, and I came across these natural antihistamines in my travels and specifically this brand. Good news: last year, I had a virtually allergy-free year (including indoor stuff like dust-related reactions) and couldn't stop talking about it. Most people were constantly complaining about how bad a year it was. Can't tell you how wonderful it was from March to early August. Bad news: Then bang, fall allergies hit me like a ton of bricks. Long story short, I'm pretty sure that butterbur is great AT FIRST for tree and grass, even some dust, allergies, but not for ragweed and may even make it worse. I stopped taking these supplements until the end of the year and now I'm back on them, but not getting any great effect. Miserable all the time, except for one thing. They seem to give a small amount of relief during my worst moments (around 11 am when I feel like I'm about to die) and really help me cope. I would recommend taking one in the morning as early as possible and then another if it's a bad day as a treatment. Maybe also a stinging nettle root capsule in addition in between. I do realize that allergies are a medical mystery to some extent, so I am patient. I give this product 4 stars by default since nothing else works ever.

## Frequently Bought Together

- LES Labs Sinus & Seasonal – Sinus Relief, Nasal Health, Balanced Histamine Response, Clear Lungs & Respiratory Health – Butterbur, Quercetin, Nettle Root & Bromelain – Non-GMO Supplement – 60 Capsules
- LES Labs Inflammatory Health – Joint Support, Muscle Function & Relaxation, Mobility– Turmeric, Boswellia, Quercetin, Ginger & CoQ10 – Non-GMO Supplement – 60 Capsules
- LES Labs Cortisol Health – Stress Relief, Balanced Cortisol Response, Relaxation & Deep Sleep – Phosphatidylserine, Magnesium, Magnolia Bark, Rhodiola Rosea & Ashwagandha – Non-GMO – 60 Capsules

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-01*