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Doctor's Best

MSM, 180 Capsules (1,000 mg per Capsule)

4.7 · 9626 reviews
1,592 ₽

Science-Based Nutrition™ Supports Hair, Skin, Nails & Joints Dietary Supplement OptiMSM® Non-GMO Gluten Free At Doctor's Best, we value nature's beauty mineral. Our MSM formula with OptiMSM® delivers beneficial sulfur, supporting the formation of healthy connective tissues to enhance joint function .* Additionally, this sulfur-containing nutrient is known to play a supportive role in maintaining the skin's structural framework and promoting the health of hair and nails. Supports overall health for vibrant hair, skin, and nails Supports joint comfort & mobility

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Science-Based Nutrition™ Supports Hair, Skin, Nails & Joints Dietary Supplement OptiMSM® Non-GMO Gluten Free At Doctor's Best, we value nature's beauty mineral. Our MSM formula with OptiMSM® delivers beneficial sulfur, supporting the formation of healthy connective tissues to enhance joint function .* Additionally, this sulfur-containing nutrient is known to play a supportive role in maintaining the skin's structural framework and promoting the health of hair and nails. Supports overall health for vibrant hair, skin, and nails Supports joint comfort & mobility

Customer reviews

5.0
verified purchase
MSM Good For Lowering Inflammation

Laboratory studies have shown that MSM has anti-inflammatory and antioxidant effects. It plays an important role in making Collagen and Glucosamine, both of which are vital for healthy bones and joints. I have chronic inflammation in my right foot and ankle which started after wearing a custom-made, ill-fitting insole. My brother recommended for me to take MSM. I’ve been taking a 1000 mg. tablet of another brand once a day, but with no improvement, so I increased the dosage to taking it 3X a day, which is the recommended dosage. I am now switching to this brand, Doctor’s Best, and am hoping to see better results.

9/29/2023
5.0
verified purchase
Fantastic

Lovely supplement, I also bought it in powder form. Regardless fantastic. Will be buying again.

4/15/2026
5.0
verified purchase
Great for natural hair care from the inside out!

I've been focusing heavily on my natural hair care routine lately, using a lot of homemade masks and gels, and decided to add this OptiMSM to support my hair from the inside out. I'm really impressed with the quality. As someone who strictly follows a vegetarian, gluten-free, and lactose-free diet, finding clean, pure supplements is a major priority for me, and this fits perfectly. I can easily swallow it with a glass of water along some vitamin C. Highly recommend if you are looking for a high-quality MSM."

4/6/2026
5.0
verified purchase
I’ve been really impressed with Doctor’s Best MSM 1000 mg capsules.

Superb quality and ingredients. The quality feels excellent and the capsules are easy to swallow with no unpleasant taste or after-smell. The bottle size (180 capsules) is great value and lasts a long time, which makes it convenient for daily use. I like that the formula is simple and straightforward, without a lot of unnecessary additives. The capsules are consistent, and I’ve had no stomach discomfort taking them. Packaging was solid and arrived fresh and well sealed. Overall, this is a reliable, well-made supplement from a trusted brand, and I would definitely purchase it again. Highly recommended for anyone looking for a clean MSM supplement option. ⭐⭐⭐⭐⭐

1/31/2026
5.0
verified purchase
Joint comfort + glow in one big bottle

This MSM is powerful and very good value. Each capsule is 1,000 mg, so taking 3 a day gives you a real clinical dose without swallowing 10 pills. I take it with my main meal and noticed less joint stiffness, faster recovery after workouts, and a subtle improvement in skin smoothness over a few weeks. Capsules are large but easy to swallow with water, and no stomach issues for me. If you’re serious about supporting joints, hair/skin and overall collagen, this big OptiMSM bottle is a smart buy.

12/3/2025
5.0
verified purchase
Doctor's Best, MSM, 180 Capsules (1,000 mg per Capsule)

I have been taking Doctor's Best MSM for some time. I take it to help my joint health, particularly my knees, to improve mobility, flexibility and comfort. I find I get considerable benefit from taking it. The ingredients are pure, the packaging is attractive and easy to use and I think it is a quality product.

12/2/2025
4.0
verified purchase
Still Too Early to See Clear Results

I haven’t noticed any obvious changes yet. I’m not sure if my dosage is too low or if MSM just needs more time to show results. My hair is still shedding quite a bit. I’ll keep using it for a while longer to see if there’s any improvement.

11/19/2025
5.0
verified purchase
Best MSM product on the market

This is by far the best MSM-product on the market we've come across so far. It's great value for the price. 360 capsules makes it so easy for us to use it without restrictions. And the results are absolutely undeniable. The quality and quantity are excellent, the benefits outstanding. It's a great improvement on our health.

11/11/2025
5.0
verified purchase

Excellent quality and fair price. iHerb always delivers great products on time.

11/4/2025
5.0
verified purchase
good simple msm

Nothing much to say other than this is a great option on the market, seems pure and effective

10/23/2025