---
product_id: 2367201
title: "7 Lights Sulfur Defense Opti-MSM 99.9% Pure MSM Powder | Dietary Supplement for Joints, Skin & Immune Support – Organic Methylsulfonylmethane Crystals, Vegan, Non-GMO, Gluten-Free – Made in USA (1 LB)"
brand: "7 lights"
price: "22.43 OMR"
currency: OMR
in_stock: true
reviews_count: 8
category: "7 Lights"
url: https://www.desertcart.com.om/products/2367201-7-lights-sulfur-defense-opti-msm-99-9-pure-msm
store_origin: OM
region: Oman
---

# Vegan, Non-GMO, Gluten-Free 99.9% Pure MSM Crystals Joint & Immune Support 7 Lights Sulfur Defense Opti-MSM 99.9% Pure MSM Powder | Dietary Supplement for Joints, Skin & Immune Support – Organic Methylsulfonylmethane Crystals, Vegan, Non-GMO, Gluten-Free – Made in USA (1 LB)

**Brand:** 7 lights
**Price:** 22.43 OMR
**Availability:** ✅ In Stock

## Summary

> ✨ Elevate your wellness game with the purest MSM power! 💪

## Quick Answers

- **What is this?** 7 Lights Sulfur Defense Opti-MSM 99.9% Pure MSM Powder | Dietary Supplement for Joints, Skin & Immune Support – Organic Methylsulfonylmethane Crystals, Vegan, Non-GMO, Gluten-Free – Made in USA (1 LB) by 7 lights
- **How much does it cost?** 22.43 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/2367201-7-lights-sulfur-defense-opti-msm-99-9-pure-msm)

## Best For

- 7 lights enthusiasts

## Why This Product

- Trusted 7 lights brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ultra-Pure MSM Crystals:** Multi-stage distillation ensures 99.9% purity for maximum bioavailability and safety.
- • **Clean, Certified & Ethical:** Made in the USA, vegan, non-GMO, gluten-free, allergen-free, and GRAS-designated for peace of mind.
- • **Radiant Hair, Skin & Nails:** Enhances collagen production to reduce wrinkles and strengthen hair and nails for a youthful glow.
- • **Comprehensive Wellness Boost:** Supports joint comfort, immune function, and accelerates cell regeneration for all-day vitality.
- • **Optimized Nutrient Absorption:** Improves cellular nutrient delivery, maximizing the benefits of your daily vitamins and minerals.

## Overview

7 Lights Sulfur Defense Opti-MSM is a premium 99.9% pure MSM powder, meticulously distilled for unmatched purity and bioavailability. Designed to support joint health, immune function, and skin vitality, this vegan, non-GMO, gluten-free supplement enhances collagen production and nutrient absorption. Made in the USA and certified allergen-free, it’s the trusted choice for professionals seeking holistic, clean wellness solutions.

## Description

Buy 7 Lights Sulfur Defense Opti-MSM 99.9% Pure MSM Powder | Dietary Supplement for Joints, Skin & Immune Support – Organic Methylsulfonylmethane Crystals, Vegan, Non-GMO, Gluten-Free – Made in USA (1 LB) on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: 7 Lights - most TRUSTED seller - I have been purchasing products from this company for years and am so happy to see them now on desertcart! They are one of the most honest companies I know. All of their products are EXCELLENT - what is on the label is truly inside the product. Great costumer service as well. This is my third purchase of their sulfur crystals - the best and purest crystals I've seen available on the internet. I have felt so much better after taking them as well. My seasonal allergies seem to disappear when I take them, and my stomach feels so soothed. My mental well being has improved also. The 7 lights company backs many of their products with scientific evidence - articles written by research scientists, doctors, etc. They have an excellent article on the numerous things that pure sulfur crystals (they have to be pure - not powder form) can do - just check it out on their website - [...]. Hooray for 7 Lights and sulfur crystals!!
Review: More Than I Could Have Ever Expected!! - I cannot say enough about this product!! I am a very overweight person with a few chronic health problems and I heard all the wonderful things about MSM online and decided to take the plunge and order some. Three months ago I started taking it and the results are absolutely staggering. I have not had this much energy in years. I feel like I'm young again and I wake up everyday ready to go. My heartburn stopped completely, my skin looks healthier, my energy levels are so high I don't even want to go to bed at night, and my joints, especially my knees, ache way less. In fact, if I skip a morning taking it, I immeditely notice. I found the key for me was to start with a smaller dose than recommended. The first time I took it, I used a teaspoon and I became very nauseous so I started with a 1/4 teaspoon and worked my way up over two and half weeks to a full teaspoon every morning. I also found that their recommendation for filtered water is incredibly important. If I don't use it, I notice that my energy is down because the supplement isn't working as well. I mix it with about two ounces of cranberry juice in a double shot glass because that masks the flavor pretty well (the one downside to the supplement is that it tastes disgusting, but I guess that's the payoff) and I drink that and then chase it with another six ounces of water. I also found that if it makes my stomach queesy, eating some breakfast immediately afterwards quells the feeling. I know that the product makes the body go through a sort of detox and my first week, I peed like crazy. The first three days, I peed like every hour at least and more urine than I even thought possible. It actually freaked me out, but then after a few days I felt so good I just continued. Figured I'd just throw this in there in case anyone else had the same thing happen to them. Lastly, I know some take it at bedtime because the product recommends that, but I haven't tried yet because I'm worried I won't be able to sleep. Either way, good luck and I hope it works for you as well as it has for me!

## Features

- 99.9% Pure MSM Crystals: Sulfur Defense Opti-MSM undergoes multi-stage distillation to remove impurities, delivering the world’s purest, safest, and most bioavailable MSM for maximum benefits.
- Total Body Support: This premium MSM dietary supplement promotes joint comfort, immune function, faster cell regeneration, and antioxidant protection – helping you feel your best from the inside out.
- Stronger Hair, Skin & Nails: Sulfur Defense Opti-MSM boosts collagen production, reducing fine lines, wrinkles, and dryness while strengthening hair and nails for a radiant, youthful appearance.
- Enhanced Nutrient Absorption: Supports cellular function by improving nutrient delivery, helping your body absorb key vitamins and minerals more efficiently for optimal health.
- Clean, Safe & Certified: Made in the USA, vegan, non-GMO, gluten-free, and allergen-free. The only GRAS-designated MSM supplement, ensuring safety, purity, and effectiveness for all lifestyles.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B009K62S28 |
| Age Range Description | Adult |
| Best Sellers Rank | #128,624 in Health & Household ( See Top 100 in Health & Household ) #63 in MSM Nutritional Supplements |
| Brand | 7 Lights |
| Brand Name | 7 Lights |
| Color | Multi |
| Customer Reviews | 4.5 out of 5 stars 547 Reviews |
| Dosage Form | Powder |
| Flavor | Unflavored |
| Item Dimensions | 4 x 2 x 4 inches |
| Item Form | Powder |
| Item Weight | 16 ounces |
| Manufacturer | 7 Lights Nutrition |
| Material Features | Allergen Free, Certified Organic, GMO Free, Gluten Free, Kosher Certified, Vegan |
| Number of Items | 1 |
| Primary Supplement Type | MSM |
| Product Benefits | Antioxidant |
| Special Ingredients | Methylsulfonylmethane |
| Specific Uses For Product | personal, family, men, women, seniors, adults |
| UPC | 813011001344 795186475079 |
| Unit Count | 16.0 Ounce |

## Product Details

- **Brand:** 7 Lights
- **Flavor:** Unflavored
- **Primary Supplement Type:** MSM
- **Unit Count:** 16.0 Ounce
- **Item Form:** Powder
- **Item Weight:** 1 Pounds
- **Item dimensions L x W x H:** 4 x 2 x 4 inches
- **Special Ingredients:** Methylsulfonylmethane
- **Product Benefits:** Antioxidant
- **Age Range (Description):** Adult

## Images

![7 Lights Sulfur Defense Opti-MSM 99.9% Pure MSM Powder | Dietary Supplement for Joints, Skin & Immune Support – Organic Methylsulfonylmethane Crystals, Vegan, Non-GMO, Gluten-Free – Made in USA (1 LB) - Image 1](https://m.media-amazon.com/images/I/81bwqsMfccL.jpg)
![7 Lights Sulfur Defense Opti-MSM 99.9% Pure MSM Powder | Dietary Supplement for Joints, Skin & Immune Support – Organic Methylsulfonylmethane Crystals, Vegan, Non-GMO, Gluten-Free – Made in USA (1 LB) - Image 2](https://m.media-amazon.com/images/I/71XTM9RY3CL.jpg)
![7 Lights Sulfur Defense Opti-MSM 99.9% Pure MSM Powder | Dietary Supplement for Joints, Skin & Immune Support – Organic Methylsulfonylmethane Crystals, Vegan, Non-GMO, Gluten-Free – Made in USA (1 LB) - Image 3](https://m.media-amazon.com/images/I/91LgiFey0LL.jpg)
![7 Lights Sulfur Defense Opti-MSM 99.9% Pure MSM Powder | Dietary Supplement for Joints, Skin & Immune Support – Organic Methylsulfonylmethane Crystals, Vegan, Non-GMO, Gluten-Free – Made in USA (1 LB) - Image 4](https://m.media-amazon.com/images/I/91Z4f8xagYL.jpg)
![7 Lights Sulfur Defense Opti-MSM 99.9% Pure MSM Powder | Dietary Supplement for Joints, Skin & Immune Support – Organic Methylsulfonylmethane Crystals, Vegan, Non-GMO, Gluten-Free – Made in USA (1 LB) - Image 5](https://m.media-amazon.com/images/I/91daO6CfOoL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 7 Lights - most TRUSTED seller
*by J***. on January 21, 2013*

I have been purchasing products from this company for years and am so happy to see them now on Amazon! They are one of the most honest companies I know. All of their products are EXCELLENT - what is on the label is truly inside the product. Great costumer service as well. This is my third purchase of their sulfur crystals - the best and purest crystals I've seen available on the internet. I have felt so much better after taking them as well. My seasonal allergies seem to disappear when I take them, and my stomach feels so soothed. My mental well being has improved also. The 7 lights company backs many of their products with scientific evidence - articles written by research scientists, doctors, etc. They have an excellent article on the numerous things that pure sulfur crystals (they have to be pure - not powder form) can do - just check it out on their website - [...]. Hooray for 7 Lights and sulfur crystals!!

### ⭐⭐⭐⭐⭐ More Than I Could Have Ever Expected!!
*by V***K on January 27, 2017*

I cannot say enough about this product!! I am a very overweight person with a few chronic health problems and I heard all the wonderful things about MSM online and decided to take the plunge and order some. Three months ago I started taking it and the results are absolutely staggering. I have not had this much energy in years. I feel like I'm young again and I wake up everyday ready to go. My heartburn stopped completely, my skin looks healthier, my energy levels are so high I don't even want to go to bed at night, and my joints, especially my knees, ache way less. In fact, if I skip a morning taking it, I immeditely notice. I found the key for me was to start with a smaller dose than recommended. The first time I took it, I used a teaspoon and I became very nauseous so I started with a 1/4 teaspoon and worked my way up over two and half weeks to a full teaspoon every morning. I also found that their recommendation for filtered water is incredibly important. If I don't use it, I notice that my energy is down because the supplement isn't working as well. I mix it with about two ounces of cranberry juice in a double shot glass because that masks the flavor pretty well (the one downside to the supplement is that it tastes disgusting, but I guess that's the payoff) and I drink that and then chase it with another six ounces of water. I also found that if it makes my stomach queesy, eating some breakfast immediately afterwards quells the feeling. I know that the product makes the body go through a sort of detox and my first week, I peed like crazy. The first three days, I peed like every hour at least and more urine than I even thought possible. It actually freaked me out, but then after a few days I felt so good I just continued. Figured I'd just throw this in there in case anyone else had the same thing happen to them. Lastly, I know some take it at bedtime because the product recommends that, but I haven't tried yet because I'm worried I won't be able to sleep. Either way, good luck and I hope it works for you as well as it has for me!

### ⭐⭐⭐⭐⭐ Joints do feel better but won't happen over night but will happen way before jar is empty .
*by L***E on May 26, 2025*

I could not care less about hair nor stronger fingernails though this certainly kicks in for that I use this as it helps me with joints and notice difference when do not take it for awhile . Little salty but who cares if it helps so much and if it bothered me could mix it with juice , etc but as of now drink it in cold water and no big deal considering it helps with my joints . Edit , let me add the manufacturer does not suggest tap water so I use it in bottled purified drinking water which I never drink as drink cold tap water but to take this daily I do use the bottled water ( I take it 2x a day in am and afternoon ) .

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-02-17*