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Description
Lyndon Fields Serra-250K Serrapeptase 250,000 SPU | 90 Delayed-Release CapsulesSerra 250K is an incredibly potent pure Serrapeptase product rated at 250,000 SPU per capsule. Serra 250K supports normal mucus levels and healthy sinus activity, making it an excellent choice during cold and flu season. Serra 250K is also a great addition to aid recovery from sports injuries and invasive procedures. \n DELAYED RELEASE: Maximum Strength Serrapeptase Capsules contain 90 capsules per bottle and 250,000 SPU per capsule. It comes in
Serra-250K is an incredibly potent pure Serrapeptase product rated at 250,000 SPU per capsule. Serra-250K supports normal mucus levels and healthy sinus activity, making it an excellent choice during cold and flu season. Serra-250K is also a great addition to aid recovery from sports injuries and invasive procedures.
\n- DELAYED RELEASE: Maximum Strength Serrapeptase Capsules contain 90 capsules per bottle and 250,000 SPU per capsule. It comes in absorption-enhancing delayed-release capsules – an amazing value! Compare this to other leading brands that provide lower dosages, contain fewer capsules per bottle, and are not in delayed-release capsules
- MAXIMUM STRENGTH - 250,000 SPU PER CAPSULE: Each capsule contains an extra strength dosage of 250,000 SPU. This dosage is per capsule, which means that each bottle provides as much as an entire 3-month supply!
- ENHANCED ABSORPTION WITH DELAYED RELEASE CAPSULES: Stomach acid destroys these delicate enzymes. To prevent this, our Maximum Strength Serrapeptase comes in delayed-release capsules, which enable the enzymes to survive past the stomach acid and pass into the small intestine for maximum absorption
- NATURAL, VEGAN, & NON-GMO: All ingredients, including the capsule, are 100% vegan. Our Extra Strength Serrapeptase contains no sweeteners, artificial flavors, wheat, corn, gluten, soy, milk, egg, fish, shellfish, or tree nut ingredients. Enjoy the excellent benefits of our potent Serrapeptase without worrying about what else might be hiding in each capsule!
- GOLD STANDARD PRODUCTION: Your health and safety mean everything to us. For that reason, our Extra Strength Serrapeptase is manufactured in the USA, in a fully certified facility with adherence to good manufacturing policies and under the most stringent quality control. You can rest assured that you get the best value for your money!
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 4
These give the benefits of a silk pillowcase on a budget.
Color: White, Size: Standard（20"X 26"）
These are very nice pillowcases. Are these made from mulberry silk? I’d have to say no based on the burn test. However if anyone thinks they’re going to get a real mulberry silk pillowcase for this price, they need a reality check.
I’ve purchased authentic mulberry silk pillowcases online from between $45 and $105. Most are $70 and up. I’ve bought a number of so called silk pillowcases up to $25. The Infiixso pillowcases are probably the nicest of this latter group.
They have the right amount of sheen and the right amount of slip to them. They are very soft and went through the wash well in a mesh bag. I did put them in the dryer and meant to take them out after ten minutes but forgot them; taking them out after about 20 minutes on medium heat. One was a little wrinkly but it was in the mesh bag still. The other one came out fine.
These fit my pillows without issue. The zipper seems to be sewn in well. The white is a true crisp white.
These sleep cool and my hair glides across them so my hair looks better in the morning than if using a regular non-silk pillowcase.
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Reviewed in the United States on March 26, 2026
★★★★★ 5
RECOMMEND
Color: White, Size: 2 Pack Standard（20"X 26"）
Warning: if you buy the color black, it will bleed and stain your pillows. This happened to me. I had to throw out my pillows. This issue does not sway my rating. The pillowcase is wrinkle-free and super soft. Fits standard-size and queen-size pillows. Quality and appearance are excellent. After my unfortunate purchase of the black pillowcases, I purchased the white, and I’m very happy I did. I gave a 5-star rating because they are beautiful and of great quality.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
LOVE this silk pillowcase!
Color: Cream, Size: Queen（20"X 30"）
I have been wanting a silk pillowcase for awhile but wasn't sure if I would like sleeping on one. Much to my delight, I LOVE sleeping on a silk pillowcase and this one is quite nice. First- I love that it fit my oversized pillow. I ordered a queen size and I had some room to spare without it being overly big. I also love that it has a zipper close so the pillow case stays on well and doesn't move around too much. I washed it before using and let it air dry and the pillow case didn't have any wrinkles which is wonderful. It stays cool to sleep on and my skin and hair love it!
Very comfortable, great value and lovely design!
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Reviewed in the United States on March 6, 2026
★★★★★ 5
THIN BUT SUPER SOFT
Color: White, Size: Standard（20"X 26"）
Note that the fabric is thin and the pillow may show through. A plain white pillowcase underneath easily resolves this. Still a recommended buy — exceptionally soft and very inexpensive!
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Silk pillow cases that are a stitch above
Color: Beige, Size: 2 Pack Standard（20"X 26"）
These pillow cases are amazing. My family loves them. Great quality. They can be machine washed. I have purchased the more expensive brands but these are made from the same silk and have the same features like a hidden zipper for a fraction of the cost. They come in a variety of colors which is also an added bonus.
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Reviewed in the United States on April 28, 2026
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