Pay in installments of $6.77 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Doctor's Best Natto-serra - 90 VcapsRead more about this product Doctor's Best Natto Serra is a combination of two natural enzymes serrapeptase and nattokinase, and supports healthy immune response and supports healthy circulation. Nattokinase, a fibrinolytic enzyme, breaks down blood clotting fibrin while Serrapeptase (serratiopeptidase) is a protein digesting enzyme isolated from the friendly bacterium Serratia E 15 Doctor's Best uses serrapeptase made with Serrateric, a superior
Read more about this product
Doctor's Best Natto-Serra is a combination of two natural enzymes serrapeptase and nattokinase, and supports healthy immune response and supports healthy circulation.Nattokinase, a fibrinolytic enzyme, breaks down blood clotting fibrin while Serrapeptase (serratiopeptidase) is a protein-digesting enzyme isolated from the friendly bacterium Serratia E-15
Doctor's Best uses serrapeptase made with Serrateric, a superior alternative to enteric coating that protects the enzyme until it reaches the intestines for optimal absorption.
Nattokinase is derived from Natto , a fermented soy food popular in Japan for centuries.
Gluten Free, Non-GMO, Vegetarian, Vegan
What is Doctor's Best Natto-Serra?
Doctor's Best Natto-Serra supports healthy immune response and supports healthy circulation. It is a combination of two natural proteolytic enzymes, serrapeptase and nattokinase. Serrapeptase (serratiopeptidase) is a protein-digesting enzyme isolated from bacteria isolated from the intestine of silk worms (Serratia E-15). The serrapeptase is formulated with Serrateric, a superior alternative to enteric coating that protects the enzyme until it reaches the intestines for optimal absorption. Nattokinase is derived from Natto , a fermented soy food popular in Japan for centuries.
How does it work?
Natto kinase is an enzyme that is found in traditional Japanese soy cheese that is also known as natto. Natto has been shown to exhibit a fibrin lytic effect in the blood stream. It has the capability to break down blood clots. Nattokinase was discovered I 1980 by a doctor from Miyazaki Medical College in Japan. Since its discovery, the cardiovascular effects of Nattokinase have been studied in many countries. Serrapeptase has other applications. Serrapeptase is an immunologically active enzyme. It can bind itself to the alpha 2 macroglobulin in our plasma where it is shielded from the immune system while retaining its enzymatic activity, and in this way it is transferred to the sites where it is needed in the body. It is this same type of specific action that allows silkworms to eat its own protective cocoon, digest it without any side effects.
What is In
Doctor's Best
Natto-Serra - 90 vcaps
Food supplement in capsule form, containing Calcium, Nattokinase and Serrapeptase enzyme
Nutrition Facts
Serving Size: 1 Veggie Capsule
Servings Per Container: 90
| Amount Per Serving |
%RI* | |
|---|---|---|
| Calcium (from tri calcium phosphate andcalcium stearate in Serrateric) | 27 mg | 2% |
| Serrapeptase enzyme (fromSerratio sp.) | 40000 SPU | |
| Nattokinase (from fibrinase enzyme) | 2000 FU |
*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Ingredients: Calcium (from tri calcium phosphate andcalcium stearate in Serrateric), Serrapeptase enzyme (fromSerratio sp.), Nattokinase (from fibrinase enzyme)
Other ingredients: Serrateric (maltodextrin, trica lcium phosphate, calcium stearate, microcrystalline cellulose, medium chain triglycerides), delayed release capsule (modified cellulose, gellan gum, purifed water. Contains Soy.
Recommended use: Take 1 capsule daily without food, or as recommended by a nutritionally-informed physician.
Warnings: Not recommended for individuals who are pregnant, nursing, allergic to soy, or have poor digestion. Consult a physician before use if taking blood thinners. Stop taking if you experience nausea, vomiting or stomach upset.Non-GMO / Gluten Free / VeganKEEP OUT OF REACH OF CHILDRENStore in a cool dry place.
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 25 reviews
Sort
Product Reviews
★★★★★ 5
I’m a fan of Mrs. Meyers’ Clean Day
Scent: Apple Cider, Size: 16 Fl Oz (Pack of 3)
I have used Mrs. Meyers Clean Day for years! For me, it works great on my final wipe down, and it leaves a nice fresh scent that fills the room. I really like the Apple Cider scent and I was very happy to see it available in a 3-pack. It is easy to use and does not leave a residue, because I buff the surface with a dry towel after I wipe off the product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
★★★★★ 5
Lovely!
Scent: Rose, Size: 16 Fl Oz (Pack of 1)
Beautiful floral scent. I am very sensitive to strong scents. This spray does not irritate my nose and smells light, like fresh flowers. It does a great job cleaning my counters and leaving them sparkling!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 4
Good cleaner, scent doesn’t last
Have been excited to try this and see how it compares to my previous cleaning solutions. I love the idea of a cleaner that keeps protecting my home for seven days after I clean!
The bottle arrived packed inside a plastic bag, which kept it from leaking on other items in the box. That said, it did clearly leak inside the bag and I had to clean off the bottle before using as it was covered in dried solution that felt tacky to the touch. Tried to show in the photo but not sure that comes through. Anyway, I immediately made a bucket of solution per the directions and headed off to clean. The ratio of 1/2 cup cleaner to one gallon of water makes a VERY sudsy mixture. Not desirable for wiping surfaces or cleaning floors, in my opinion. I’ll use less cleaner next time because the suds were super annoying to deal with and also made me feel like an additional rinse was needed.
A main goal of purchasing this was to use it on my porcelain tile wood look floors and have a long lasting scent, as other reviewers mentioned. I don’t think the scent lasted very long, though I was pleased with how fresh it smelled. It doesn’t smell like a traditional lemon cleaner. The scent is light and fresh and has a sort of herbal or “grassy” aspect to it. My floor seemed quite clean after using this (the mop bucket dump was surprising!) so even though the scent doesn’t stick around for long, I’m pleased with how clean my floor got. Would probably purchase again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2024
★★★★★ 5
Cleans everything and smells amazing
Scent: Basil, Size: 32 Fl Oz (Pack of 1)
Smells amazing!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
★★★★★ 5
Hair growth
I see results with my hair growth I'm very pleased. There is a noticeable smell to it but dissipates over a short time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
recommand products
Large Bronze OG Hannya 2D Sakura Eyes Microtech CNC Clip
300.00
"Marfione Select" Amphibian - RAM-LOK Stonewash Finish Ice Blue Anodized Slab Side Titanium W/ Blue Titanium Accent 137RL-10MS6
301.50
Hyundai Genuine (Mobis) Part No.: 4738339162 Part Name SPACER
579.50
Hyundai Genuine (Mobis) Part No.: 4738339168 Part Name SPACER
579.50
Hyundai Genuine (Mobis) Part No.: 986104N000 Part Name RESERVOIR & PUMP ASSY-WASHER
579.00