---
product_id: 43755772
title: "ComStar Pure Lye | 99% Pure Sodium Hydroxide Beads | Eco-Friendly, Industrial..."
brand: "comstar"
price: "£42.75"
currency: GBP
in_stock: true
reviews_count: 10
category: "Com Star"
url: https://www.desertcart.co.uk/products/43755772-comstar-pure-lye-99-pure-sodium-hydroxide-beads-eco-friendly
store_origin: GB
region: United Kingdom
---

# eco-friendly & biodegradable formula unique bead tech sinks through standing water 99% pure sodium hydroxide beads ComStar Pure Lye | 99% Pure Sodium Hydroxide Beads | Eco-Friendly, Industrial...

**Brand:** comstar
**Price:** £42.75
**Availability:** ✅ In Stock

## Summary

> 🚿 Clear drains, craft soap, and clean green — all with one powerhouse bead!

## Quick Answers

- **What is this?** ComStar Pure Lye | 99% Pure Sodium Hydroxide Beads | Eco-Friendly, Industrial... by comstar
- **How much does it cost?** £42.75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/43755772-comstar-pure-lye-99-pure-sodium-hydroxide-beads-eco-friendly)

## Best For

- comstar enthusiasts

## Why This Product

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

## Key Features

- • **Soap Maker’s Secret:** Clump-free, quick-dissolving beads for faster, consistent soap crafting
- • **Eco-Conscious Cleaning:** Biodegradable, septic-safe formula that supports active bacteria growth
- • **Industrial-Grade Purity:** 99% pure sodium hydroxide beads for instant clog dissolution
- • **Fixture-Friendly Formula:** Odorless, non-acidic, safe on chrome, metal, PVC, and plastic pipes
- • **Precision Bead Technology:** Beads sink through water to target blockages fast and effectively

## Overview

ComStar Pure Lye is a 2 lb pack of 99% pure sodium hydroxide beads designed for professional-grade drain clearing and soap making. Its unique bead form dissolves quickly without clumping, safely breaks down grease and roots, and is biodegradable and safe for septic systems. Odorless and non-acidic, it protects fixtures and pipes while delivering fast, effective clog removal.

## Description

ComStar Pure Lye is an industrial-strength environmentally safe, bead formula designed to clear out drains, grease traps, septic systems, and roots. ComStar Pure Lye is also a best-selling soap maker. This sodium hydroxide formula is the purest white, bead-size lye in the world—99% pure. A natural drain opener, ComStar Pure Lye is biodegradable and odorless with a non-acid formula that is safe on fine fixtures, chrome trim, and metal or plastic pipes. This amazing product clears out clogged and slow-moving drains, grease traps, and septic systems, without harming septic tanks or cesspools. Because of the unique bead shape, ComStar Pure Lye will sink to the bottom of standing water and attack the cause of the blockage for a fast break-up. ComStar Pure Lye does not stink or create fumes and has become a favorite drain-opening product for homes, schools, hospitals, cafeterias, and restaurants. ComStar Pure Lye’s small bead form is preferred for soap making. Unlike more common flake formulas, ComStar Pure Lye Beads do not clump together, create static, and dissolve quickly. Because of this, soap making is faster and easier with ComStar Pure Lye.

Review: I'm totally surprised ... and impressed! It WORKED! - I read through other desertcart reviews about this product, so decided to give it a try. I have to say, I'm totally impressed! I had a bathroom drain that was nearly completely clogged up, mostly with hair. Ordinarily, I'd have just pulled out the drain plug, dug the hair out with my hemostats, and been done with it. But this particular plug is unnecessarily difficult to get out, so I thought I'd try something else. My first attempt was with some sort of drain cleaner. Directions said to use half of the bottle, I think there was maybe 1/3 of the bottle left, so I used that. Poured it into the bathtub drain, left it overnight, took a shower the next day and saw no improvement whatsoever. It took 1 inch of water in the bathtub about 40 minutes to drain. Expecting the Lye to perform no better than my drain cleaner, poured it down the drain 4 times, rather than "just" following the directions. I reasoned that perhaps most of the solution would drain PAST the hair clog, and NOT dissolve the clog? So, on the first night, I estimated doing what the directions said, 1 cup of Lye dissolved into 1 to 1 1/2 cups of water. Poured it down the drain. Left it overnight. Next day, made up a small solution - maybe half of what the directions suggested, poured it slowly into the drain. Did that, again, that evening, and, again, the next day. Four days later, I took a shower in that particular shower, and it drained just fine, I couldn't believe it! So, now I'm wondering how much the lye actually worked after only ONE administration, rather than 4. But I'm glad and quite impressed that it really did work. In total, I used about 2/3 of the bottle, with plenty left over for other drains in the house. Of note: Lye is not the nicest stuff to use or have around in your house. I found out that when you mix it with water, it generates heat. I could easily feel the heat through the plastic bucket that I used to mix the solution. Lye will chemically burn your skin, to be careful. Don't let it touch your skin, and be especially careful not to get it into your eyes. Also, according to wikipedia, Lye can pull enough water out of the atmosphere to turn itself into a liquid solution (which generates heat) and can potentially ignite other flammable substances (paint? gasoline? paint thinner?) So I'll use ALL of the remaining Lye in my other household drains, and NOT store it in the house or in the hot garage. Knowing full well that the next time the drain even STARTS to drain SLOWLY, the solution is only one quick visit to desertcart and a couple of days away.
Review: Miracle worker - My kitchen sink backs into my bathroom sink once a year. The plumber says its roots. I dont beleive him. This year, I wasnt spending $700 for them to come out and clear the lines. Since december I have tried zap stuff, twice and it didnt work. I borrowed a snake, snaked thru the entire line, didnt work. I almost gave up and called a plumber but decided to come on desertcart and look at reviews on drain cleaners. This product does NOT disappoint!!! It arrived about 2 hours ago. I heavily armed myself with protective gloves, eyewear and old heavy clothes. (My dad scared the life out of me about this stuff being very dangerous) I read the directions about 40 times before I was confident enough to use it. I really didnt want to burn an arm off or worse, cause my pipes to melt causing me more money that I dont have. Ok. I followed the direction for a slow drain. First I boiled water and sent that down the drain a few times as it says to "warm the pipes up" then I used one cup of this miracle stuff in each drain. It fizzed, hissed and reminded me of the science experiment in middle school of an exploding volcano that only half works... it erupted, slightly. Then all settled and I waited, and waited. I didnt want to jump the gun at just 15 minutes. This was some major clog we were working with. So while I waited, I started boiling water in ever big pot I had on all my burners. Alexa rang and my time was up! I started off pouring the boiling water SLOWLY down the first drain I dropped the product down. Nothing. No fizzing, no exploding. It just kept draining. Shocked. I ran to my kitchen and started dumping water down the drain... surely it would back up into my bathroom sink again... three gallons down the hatch... i run to the bathroom... it's clear! Holy moly! I put this stuff to the test. I run both the sinks hot water full blast down the kitchen sink and bathroom. Now I'm running back and forth like a crazy woman but guess what! Nooooo clog, no water pooling, nothing. I'm so amazed with this product. For weeks I have been stressing about not having the money to fix this, but after spending under 6 bucks on this stuff I am floored. I will NEVER buy any other drain cleaner again and neither should you! This stuff is a game changer!

## Features

- 99% PURE SODIUM HYDROXIDE: Our industrial-strength formula is the purest white, bead-size lye available. This professional-grade sodium hydroxide is designed to dissolve grease, hair, and root growth instantly, making it the ultimate drain opener for stubborn clogs.
- THE SOAP MAKER’S FAVORITE: Crafters prefer ComStar Pure Lye for its unique bead shape that dissolves quickly and won't clump or create static. Whether you are a beginner or a pro, these small beads make soap making faster, easier, and more consistent.
- ECO-FRIENDLY & BIODEGRADABLE: Clean your drains without the guilt. Our non-acid, biodegradable formula is safe for septic systems, cesspools, and grease traps. It even enhances the growth of active bacteria in your septic system when used regularly.
- SAFE ON FIXTURES & PIPES: Unlike harsh acid cleaners, Pure Lye is safe on fine fixtures, chrome trim, and all types of metal or plastic (PVC) pipes. It is odorless and creates no offensive fumes, making it ideal for use in homes, schools, and hospitals.
- UNIQUE BEAD TECHNOLOGY: Because of their specific density and shape, these beads sink through standing water to attack the cause of the blockage directly at the bottom of the pipe for a fast, effective break-up of grease and organic matter.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B071YVYX5P |
| Best Sellers Rank | #3,928 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11 in Commercial Drain Openers #50 in Chemical Drain Openers |
| Brand | ComStar |
| Brand Name | ComStar |
| Customer Reviews | 4.5 out of 5 stars 7,011 Reviews |
| Global Trade Identification Number | 00024924305041 |
| Item Form | Pellets |
| Item Highlight | Unique Beads for Drains, Septic Systems, Cesspools & Grease Traps, Lye for Soap-Making, Bio-Safe, Eco-Friendly, Made in USA |
| Item Weight | 2 pounds |
| Manufacturer | Comstar |
| Model Number | 024924305041 |
| Number of Items | 1 |
| Part Number | 024924305041 |
| Product Benefits | Clears clogs, fast break-up of blockages, odorless, safe on fixtures |
| Scent | odorless |
| State of Matter | Solid |
| State of matter | Solid |
| UPC | 024924305041 |
| Unit Count | 32 Ounce |

## Product Details

- **Brand:** ComStar
- **Item Weight:** 2 pounds
- **Product Benefits:** Clears clogs, fast break-up of blockages, odorless, safe on fixtures
- **Scent:** odorless
- **State of matter:** Solid

## Images

![ComStar Pure Lye | 99% Pure Sodium Hydroxide Beads | Eco-Friendly, Industrial... - Image 1](https://m.media-amazon.com/images/I/712650p+HlL.jpg)
![ComStar Pure Lye | 99% Pure Sodium Hydroxide Beads | Eco-Friendly, Industrial... - Image 2](https://m.media-amazon.com/images/I/81pkY0s5t5L.jpg)
![ComStar Pure Lye | 99% Pure Sodium Hydroxide Beads | Eco-Friendly, Industrial... - Image 3](https://m.media-amazon.com/images/I/81pVr2lDJqL.jpg)
![ComStar Pure Lye | 99% Pure Sodium Hydroxide Beads | Eco-Friendly, Industrial... - Image 4](https://m.media-amazon.com/images/I/81-Xsx3XUSL.jpg)
![ComStar Pure Lye | 99% Pure Sodium Hydroxide Beads | Eco-Friendly, Industrial... - Image 5](https://m.media-amazon.com/images/I/818J+I2vhFL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ I'm totally surprised ... and impressed! It WORKED!
*by S***E on May 7, 2013*

I read through other Amazon reviews about this product, so decided to give it a try. I have to say, I'm totally impressed! I had a bathroom drain that was nearly completely clogged up, mostly with hair. Ordinarily, I'd have just pulled out the drain plug, dug the hair out with my hemostats, and been done with it. But this particular plug is unnecessarily difficult to get out, so I thought I'd try something else. My first attempt was with some sort of drain cleaner. Directions said to use half of the bottle, I think there was maybe 1/3 of the bottle left, so I used that. Poured it into the bathtub drain, left it overnight, took a shower the next day and saw no improvement whatsoever. It took 1 inch of water in the bathtub about 40 minutes to drain. Expecting the Lye to perform no better than my drain cleaner, poured it down the drain 4 times, rather than "just" following the directions. I reasoned that perhaps most of the solution would drain PAST the hair clog, and NOT dissolve the clog? So, on the first night, I estimated doing what the directions said, 1 cup of Lye dissolved into 1 to 1 1/2 cups of water. Poured it down the drain. Left it overnight. Next day, made up a small solution - maybe half of what the directions suggested, poured it slowly into the drain. Did that, again, that evening, and, again, the next day. Four days later, I took a shower in that particular shower, and it drained just fine, I couldn't believe it! So, now I'm wondering how much the lye actually worked after only ONE administration, rather than 4. But I'm glad and quite impressed that it really did work. In total, I used about 2/3 of the bottle, with plenty left over for other drains in the house. Of note: Lye is not the nicest stuff to use or have around in your house. I found out that when you mix it with water, it generates heat. I could easily feel the heat through the plastic bucket that I used to mix the solution. Lye will chemically burn your skin, to be careful. Don't let it touch your skin, and be especially careful not to get it into your eyes. Also, according to wikipedia, Lye can pull enough water out of the atmosphere to turn itself into a liquid solution (which generates heat) and can potentially ignite other flammable substances (paint? gasoline? paint thinner?) So I'll use ALL of the remaining Lye in my other household drains, and NOT store it in the house or in the hot garage. Knowing full well that the next time the drain even STARTS to drain SLOWLY, the solution is only one quick visit to Amazon and a couple of days away.

### ⭐⭐⭐⭐⭐ Miracle worker
*by J***S on January 28, 2020*

My kitchen sink backs into my bathroom sink once a year. The plumber says its roots. I dont beleive him. This year, I wasnt spending $700 for them to come out and clear the lines. Since december I have tried zap stuff, twice and it didnt work. I borrowed a snake, snaked thru the entire line, didnt work. I almost gave up and called a plumber but decided to come on Amazon and look at reviews on drain cleaners. This product does NOT disappoint!!! It arrived about 2 hours ago. I heavily armed myself with protective gloves, eyewear and old heavy clothes. (My dad scared the life out of me about this stuff being very dangerous) I read the directions about 40 times before I was confident enough to use it. I really didnt want to burn an arm off or worse, cause my pipes to melt causing me more money that I dont have. Ok. I followed the direction for a slow drain. First I boiled water and sent that down the drain a few times as it says to "warm the pipes up" then I used one cup of this miracle stuff in each drain. It fizzed, hissed and reminded me of the science experiment in middle school of an exploding volcano that only half works... it erupted, slightly. Then all settled and I waited, and waited. I didnt want to jump the gun at just 15 minutes. This was some major clog we were working with. So while I waited, I started boiling water in ever big pot I had on all my burners. Alexa rang and my time was up! I started off pouring the boiling water SLOWLY down the first drain I dropped the product down. Nothing. No fizzing, no exploding. It just kept draining. Shocked. I ran to my kitchen and started dumping water down the drain... surely it would back up into my bathroom sink again... three gallons down the hatch... i run to the bathroom... it's clear! Holy moly! I put this stuff to the test. I run both the sinks hot water full blast down the kitchen sink and bathroom. Now I'm running back and forth like a crazy woman but guess what! Nooooo clog, no water pooling, nothing. I'm so amazed with this product. For weeks I have been stressing about not having the money to fix this, but after spending under 6 bucks on this stuff I am floored. I will NEVER buy any other drain cleaner again and neither should you! This stuff is a game changer!

### ⭐⭐⭐⭐⭐ Works wonders.
*by J***I on October 9, 2026*

Product work great I do highly recommend it .

## Frequently Bought Together

- ComStar Pure Lye | 99% Pure Sodium Hydroxide Beads | Eco-Friendly, Industrial Strength, Biodegradable Drain Opener | Safe on Fixtures | Static-Free, Unique Beads for Soap Making | 2 lb. (30-504)
- Walfos Silicone Soap Mold - Flexible Rectangular Loaf Mold Comes with Wood Box, Stainless Steel Wavy + Straight Scraper for Soaps Making 42oz
- ComStar Pure Lye | 99% Pure Sodium Hydroxide Beads | Eco-Friendly, Industrial Strength, Biodegradable Drain Opener | Safe on Fixtures | Static-Free, Unique Beads for Soap Making | 1 lb. (30-500)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-10-28*