guai aid slider 1920x1080

Welcome To GUAI-AID.COM website

Your Direct source for the highest quality guaifenesin products made in the United States
All Guai-Aid® products are dye-free, sugar-free, gluten-free, and salicylate-free

Featured Products Visit our Online Store for all Strengths and Quantities


Guai-Aid 300mg Vegetarian Capsules

  • Clear

Guai-Aid 600mg Vegetarian Capsules

  • Clear

Guai-Aid 400mg Capsules

  • Clear

Guai-Aid 600mg FREE Trial Sample

  • Clear

Testimonials What Customer Say About Guai-Aid...


Yay! They don't choke me!

I love that these are so small compared to others. I have not had one stick in my throat at all, and that's SO important because I have to take them 2 - 3 times a day. Thank you Guai-Aid!

March 8, 2023

Smaller than most Guaifenesin tablets

It works as well as other formulations of Guaifenesin, but it’s smaller than most of the tablets you can buy. I needed the smallest I could find because the patient can’t swallow well.

February 20, 2023

Capsules a Plus!

Wanted a Mucinex supplement that was not a tablet or caplet. I have a hard time swallowing those. This was perfect. Easy to swallow, the right dose and 200 capsules at a great price.

February 16, 2023

No more dizziness!

My doctor recommended guaifenesin because I complained of dizziness when turning my head. They've solved my inner ear congestion problem & now the merry-go-round feeling is gone. If you have trouble swallowing, these will make that job so much easier. The photo shows the difference between this brand & the Costco "big blue" version.

January 1, 2023

Fast delivery, great product

I have used Guai-Aid 600 mg caplets for several years. Thank you for a great product.

November 14, 2022

High quality product!

I've tried many different brands of Guaifenesin/mucus relief over the years. These tablets are smaller than typical 400mg Guaifenesin of other brands AND easier to swallow, all while being less expensive and containing less binder/inactive ingredients than other brands. Best on Amazon hands down!

September 7, 2022

Not as effective as Mucinex

My review is based strictly on my perceptions of the effectiveness compared to Mucinex. I took Mucinex daily for several years and decided to try this product to save money. This does not clear my lungs as Mucinex did. I'm going to have to go to 4 per day and see if that improves.

August 17, 2022

The same supplement, different brand

This is the same supplement I’ve used for a while now to combat my persistent post-nasal drip, and more cost effective than other brands. I don’t like the large lozenges as they are hard to swallow, however.

August 10, 2022

Great Price

Great product for a great price

July 24, 2022

Not easy to swallow for me

I found these not easy to swallow. I have a small throat and it was hard for me to get down. I will go back to liquid or pills I can cut in half.

July 19, 2022

Good value

Good for allergies and congestion

July 14, 2022


Works as it should

July 8, 2022

Works well, good price

I have mild allergies, and my doctor recommended that I take this. Seems to help, and the price is low. I plan to buy more as needed.

April 19, 2022

Helps with sticky phlegm in throat

I take this in the early am to relieve sinus/reflux problems it helps to loosen the phlegm so you can blow your nose or otherwise expell it, ideally. This is a good company/product. I was getting this for years straight from them so I was glad to see I could get it from Amazon now. I like that there are no questionable fillers or other medicines for other symptoms I don't have. Just the guaifenesin.

March 30, 2022

Works for me

Worked as expected. Good bye phlegm

February 27, 2022


Good price for needed medication

January 9, 2022

Very effective in managing congestion due to sinus condition.

I like the ease of swallowing; the previous Guaifenisen I took was a large pill without the slick covering this capsule has. The old one often stuck in my throat, causing a lot of discomfort. This one is easy to swallow, and does the trick.

December 24, 2021

Works like a charm

Keeps me clear of unwanted mucus all day.

November 8, 2021

I like it!

Good quality

October 18, 2021

Love that it’s organic!

I use this once a week to counteract side effects of a Med I take and it works perfectly! The fact that it’s organic is the icing on the cake.

October 6, 2021

Came sealed like new

Great product even greater price ?

September 8, 2021

Easy to swallow capsules

I love this product. It’s so easy to swallow. I ordered caplet by mistake. The company called me from CA and fedexed new capsules to me. Very impressive. It’s not often today that you receive such outstanding service.

June 25, 2021

Active ingredient in Mucinex, which is quite expensive. This is very cost-effective!

See one line review above.

June 13, 2021

It works!

I've ordered twice, because it gets the job done!

May 29, 2021

Fast and professional transaction

The product is very useful in calming my bronchitis cough

May 24, 2021


Good quality product, tablet is scored so it’s easy to break in half if desired

May 4, 2021

Perfect product for allergies plus Fibromyalgia.

Have used this product for many years to control allergies and also Fibromyalgia.

April 17, 2021

Great product = Great Company

I have been using Guai-Aid brand of guaifenesin from Health Products Express for almost 20 years. I have ordered directly from Health Products Express and, for convenience, through Amazon, Service has always been excellent and the product really works.

April 9, 2021

Great price

This is so much cheaper than the name brands and I find it just as effective.

April 4, 2021

Love your health? Then this is worth the read.

I am 64 yrs old and used this product for about 2 months for excessive phlegm. Mucinex are so expensive. I have COPD & asthma and need help with phlegm EVERYDAY. For 2 months - I thought or wanted to believe I was getting help from the Guai-Aid 600mg (I take 2 to get1200mg). I noticed my cough to clear phlegm was just not improving, getting to be too much. I decided to try Mucinex-Max Strength 1200mg for a week AGAIN. Just as expected- everything improved including my ease of breathing. I really wanted to be able to save some money with a less expensive product but I can't do it at the risk of my health I bought a 42 pack of Mucinex here on Amazon for a decent price. If you buy through subscription you can save even more $. I honestly believe this is the first time I've had to write a negative review. I have trashed my bottles of Guai-Aid 600mg- I write this because I don't want you to experience the same thing. May the force be with you!🙂

February 20, 2021

Not easy to swallowing.

These are “tablets” with no real coating for easy swallowing. I have trouble with them getting stuck in my throat.

February 18, 2021

Great price great product

Super amazing value for the price. Works every time.

December 27, 2020

works well

It seems to work as well as a popular brand name product at a fraction of the price

December 5, 2020

Very important medication for folks with impaired Neurology

I have 1) Peripheral Neuropathy and 2) weakened swallow reflexes due to a dissected carotid artery. These cause phlegm to build up on my vocal chords. Guaifenesin helps loosen phlegm and reduce speech problems.

October 30, 2020

Worked well R us.

Good purchase

October 17, 2020

They work

For health reasons

October 15, 2020

Better than waiting and having to use albuterol

I have severe hay fever. I can get most symptoms under control but the low intensity asthma. I hate using albuterol, especially at night when I most need it. Taking this regularly keeps my lungs "moving" throughout the day.

September 12, 2020



September 4, 2020

Works gre at

I have allergies this works great for congestion. 😎

August 22, 2020

Great product. Uncoated tablets

This is the best brand I've found for this product.

August 20, 2020

Guai-Aid® 600mg"Utra-Pure" Guaifenesin Caplets

I use this because have COPD and one of the effects is a build up of phlegm in my throat. I have used Mucinex in the past and switched to this as a much less expensive alternative. This really does the job!

August 16, 2020

Great value for this Mucinex generic.

I can't afford the cost of Musinex and I need to take it constantly to avoid illness/infection. I can get 100 tablets for a few dollars more instead of only 2 weeks worth for $14.00+ taxes. I just have to reorder a week or so ahead of time before I run out. Awesome deal.

July 28, 2020

No Upset Stomach

My other expectorant created gas, these do not. No upset stomach.

June 30, 2020

pleased no dyes

no after taste, easy to swallow and no dyes. Very happy with them.

June 6, 2020


This helps my sinuses

June 5, 2020

Metalic Taste !!

Do NOT Buy this crap! At least not from this seller! They have an after-taste of LEAD !! Yuck !! Nasty stuff !!

May 10, 2020

Quality product

Great value.

May 8, 2020

They work very well and are much cheaper then OTC Mucsinex.

You do need a lot of water to get them down, but, it's worth it. They work well.

May 4, 2020


Great product

April 26, 2020

Will definitely buy next year

Great to be able to buy in bulk

April 24, 2020
[trustindex no-registration=amazon]

Feel Better Today OFFER

Be one of the next twenty-five shoppers to get a 10-day supply absolutely FREE

Latest News Read all about Fibromyalgia and how GUAI-AID can help...