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Natural Factors Ultra-Lax Herbal Formula 90 Tablets
Natural Factors Ultra-Lax Herbal Formula 90 Tablets
Natural Factors Ultra-Lax Herbal Formula 90 Tablets
Natural Factors Ultra-Lax Herbal Formula 90 Tablets
Natural Factors Ultra-Lax Herbal Formula 90 Tablets
Natural Factors Ultra-Lax Herbal Formula 90 Tablets
Natural Factors Ultra-Lax Herbal Formula 90 Tablets

Natural Factors Ultra-Lax Herbal Formula 90 Tablets

(628 reviews)

Natural Factors Ultra-Lax contains natural active herbal ingredients that produce a gentle laxative effect in 6-12 hours.

Natural Factors Ultra-Lax contains natural active herbal ingredients that produce a gentle laxative effect in 6-12 hours.

$14.13 - $58.24

in 3 offers

The lowest price for Natural Factors Ultra-Lax Herbal Formula 90 Tablets right now is $14.13 at iHerb, compared across 3 retailers.

The all-time low was $9.07 on 14 Jan 2026 — today's price is 56% above the lowest ever. It has been notably cheaper before — worth setting a price alert.

Prices last updated 8 June 2026.

Natural Factors Ultra-Lax Herbal Formula 90 Tablets

$14.13

(628 reviews)

Natural Factors Ultra-Lax contains natural active herbal ingredients that produce a gentle laxative effect in 6-12 hours.

Natural Factors Ultra-Lax contains natural active herbal ingredients that produce a gentle laxative effect in 6-12 hours.

Price comparison

Price data powered by pricesAPI.io

Last updated at 08/06/2026 09:35:18

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
iHerb

$14.13

Natural Factors, Herbal Factors, Ultra-Lax, Herbal Formula, 90 Tablets

Delivery $40

Dick Smith AU

$39.39

Natural Factors Ultra-Lax Herbal Laxative Formula 90 Tablets

Delivery $14.95

Matt Blatt

$58.24

Natural Factors Ultra-Lax Herbal Laxative Formula 90 Tablets

Delivery $9

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Reviews

Don’t buy from this company. Not trust worthy
20 February 2023Bagitgurlz

originally posted on walmart.com

I dislike the fact that I was given the wrong medicine ( good thing I was not a patient in dire need of that medicine); also, I dislike the fact that upon returning the wrong medicine I only got back half of my money.

Effective but gentle
20 May 2021iHerb Customer

originally posted on iherb.com

This is my favorite herbal laxative formula out of every similar product I've tried from iHerb – and I've tried many! I can safely take one each night and have a bowel movement next day. It doesn't cause unexpected or uncontrolled effects and you don't have to take more and more for it to keep working. I've reached a nice balance with this product and it's super affordable too!

Excellent!
19 July 2023iHerb Customer

originally posted on iherb.com

I highly recommend Natural Factors Ultra-Lax Herbal Formula for anyone looking for a natural way to support healthy bowel function. The product contains a potent blend of herbal ingredients, including cascara sagrada and senna leaf, which can help with occasional constipation. It's easy to take and made with natural ingredients, making it a great alternative to synthetic laxatives. Just be sure to use it as directed and not rely on it for long-term use.

Specification

Serving Size1 Tablet
Calcium (dicalcium phosphate)80 mg
Cascara Sagrada (Rhamnus purshiana) (bark)130 mg
Licorice (Glycyrrhiza glabra)(root)40 mg
Peppermint (Mentha piperita)(leaf)15 mg

Price comparison

Updated 1 day ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
iHerb

$14.13

Natural Factors, Herbal Factors, Ultra-Lax, Herbal Formula, 90 Tablets

Delivery $40

Dick Smith AU

$39.39

Natural Factors Ultra-Lax Herbal Laxative Formula 90 Tablets

Delivery $14.95

Matt Blatt

$58.24

Natural Factors Ultra-Lax Herbal Laxative Formula 90 Tablets

Delivery $9

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Reviews

Don’t buy from this company. Not trust worthy
20 February 2023

I dislike the fact that I was given the wrong medicine ( good thing I was not a patient in dire need of that medicine); also, I dislike the fact that upon returning the wrong medicine I only got back half of my money.

Bagitgurlz originally posted on walmart.com
Effective but gentle
20 May 2021

This is my favorite herbal laxative formula out of every similar product I've tried from iHerb – and I've tried many! I can safely take one each night and have a bowel movement next day. It doesn't cause unexpected or uncontrolled effects and you don't have to take more and more for it to keep working. I've reached a nice balance with this product and it's super affordable too!

iHerb Customer originally posted on iherb.com
Excellent!
19 July 2023

I highly recommend Natural Factors Ultra-Lax Herbal Formula for anyone looking for a natural way to support healthy bowel function. The product contains a potent blend of herbal ingredients, including cascara sagrada and senna leaf, which can help with occasional constipation. It's easy to take and made with natural ingredients, making it a great alternative to synthetic laxatives. Just be sure to use it as directed and not rely on it for long-term use.

iHerb Customer originally posted on iherb.com
Good
17 September 2023

Effective product with good ingredients and reasonably priced. Doesn't give stomach pain or urgent diarrhea. I take them to ease constipation caused by a medication I take and sometimes I need an extra tablet over the recommended dosage, but I get no problems from this. My only complaint is the round shape and slightly rough texture of the tablet makes it get stuck on the back of my tongue, so I have difficulty swallowing it at times.

iHerb Customer originally posted on iherb.com
Very Effective
20 May 2022

My Father uses Ultra-Lax by Natural Factors to relieve his chronic constipation.I started ordering it for him from i-Herb after we found that many other non-herbal laxatives were not safe for him to take because he has heart failure.This one has worked well for him and is gentle enough for him to use regularly to keep him regular.The ingredients seem to be high quality, and the price is great too!It is a medium sized round tablet that does have a strong smell and taste, but my Dad doesn't find it unpleasant. I personally think that it smells nice.

iHerb Customer originally posted on iherb.com

Specification

Serving Size1 Tablet
Calcium (dicalcium phosphate)80 mg
Cascara Sagrada (Rhamnus purshiana) (bark)130 mg
Licorice (Glycyrrhiza glabra)(root)40 mg
Peppermint (Mentha piperita)(leaf)15 mg

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