SKU: 26165972784

Progressive Labs M.C.H.C with K1, K2 120 caps

Sale price$449100.00 Regular price$499000.00
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Description

Progressive Labs M.C.H.C with K1, K2 120 capsDescription Microcrystalline Hydroxyapatite (M. C. H. A.), also known as Micro crystalline Calcium Hydroxyapatite Complex (M. C. H. C.), is derived from raw bone and prepared by a special low temperature process (below 37 C) to preserve the protein content. The calcium thus provided is in an extremely bioavailable form. Vitamin D3 is because it is required for the absorption and utilization of calcium and phosphorus and is especially important for

Description

Microcrystalline Hydroxyapatite (M.C.H.A.), also known as Micro-crystalline Calcium Hydroxyapatite Complex (M.C.H.C.), is derived from raw bone and prepared by a special low temperature process (below 37° C) to preserve the protein content. The calcium thus provided is in an extremely bioavailable form. Vitamin D3 is because it is required for the absorption and utilization of calcium and phosphorus and is especially important for normal growth and development of bones and teeth. Vitamin K (both K1 and K2) is added support the synthesis of osteocalcin, the protein in bone tissue upon which calcium crystallizes.* However, because of its role in blood clotting, patients who have a problem in this area or who are taking medications to prevent blood clotting must carefully monitor their intake of vitamin K.

For an MCHC product without vitamin K, see #834.

Ingredients
Serving Size:1 Capsule
Servings Per Container:120

Amount Per Serving
Vitamin D3 (as cholecalciferol)Amount Per Serving:250 IU
Vitamin KAmount Per Serving:45 mcg
Vitamin K2 (as menaquinone-7)Amount Per Serving:25 mcg
Vitamin K1 (as phytonadione)Amount Per Serving:20 mcg
Calcium (from M.C.H.A. and calcium citrate)Amount Per Serving:250 mg
Phosphorus (from M.C.H.A.)Amount Per Serving:56 mg
Boron (as boron aspartate)Amount Per Serving:750 mcg
Other Ingredients:
gelatin, vegetable lubricant

Disclaimer

We work to ensure that product information is correct; however, brands may make changes to products from time to time, and actual product packaging and materials may contain more and/or different information than that shown on our website. Please consult all labels, warnings, and directions prior to using or consuming products for the most accurate product information.

Usage
Directions: One capsule four times daily. Four capsules supply 100% of the R.D.I. for calcium. Microcrystalline calcium hydroxyapatite is raw bone prepared by a special low temperature process (below 37°C) to preserve the protein content. The calcium thus provided is in an extremely bioavailable form. In addition, the product may contain trace amounts of other beneficial minerals.‡
Warnings
Sold only for dispensing by a licensed health care professional. Tamper evident band around cap and seal on bottle. Do not use if either seal is broken or missing. Keep out of reach of children.
Shipping Notes
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SKU: 26165972784

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4.0 ★★★★★
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Sarah W. Michels
Boise, US
★★★★★ 5
Long lasting
Size: Medium
My dogs love these and they last pretty long. I take them away when they get very small so I think they’re pretty safe.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
C
Verified Purchase
Corinne S
New York, US
★★★★★ 3
Meant for bigger dogs than mine
Size: Small
I bought this for my 10 month old pup who’s a VERY aggressive chewer. I’m going to say this is made for a large, older (than mine) dog. She tried to chew a couple times but eventually just walked away from it when I offered it to her and she had only made a few scratches in it. If you have that bigger dog that’s an aggressive chewer, it would be a good value for your money and will keep the engagement high for a long time with its heavy duty quality.
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Reviewed in the United States on April 3, 2026
D
Verified Purchase
DG
Belleville, US
★★★★★ 5
Finally… a dog chew that doesn’t become a homemade prison shank
Size: Medium
My dog has a real talent: turning every “tough chew” into a sharp, weaponized shard that could star in an episode of Locked Up: Canine Edition. But THIS chew? Absolute game changer. For the first time ever, I can relax—no splinters, no pointy edges, no fear he’s secretly crafting a shiv under the couch. Just happy, safe chewing that actually lasts longer than five minutes. It’s durable, it’s safe, it keeps him busy, and I no longer feel like I’m living with a furry little inmate planning an escape. Highly recommend if your dog chews like he’s got nothing but time.
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Reviewed in the United States on January 29, 2026
A
Verified Purchase
Axmceach
Cuba, US
★★★★★ 4
Would buy again
Size: Small
Would have given 5 stars, but my dog was able to chew this down pretty quickly, so not the most durable. I do like that this is made with better material than other dog chews, so I would buy again.
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Reviewed in the United States on February 12, 2026
A
Verified Purchase
Amazon Customer
Pawtucket, US
★★★★★ 5
Aggressive Chewers
Flavor Name: Bacon-bone shape, Size: Small-under 20LBS
Great for aggressive chewers.
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Reviewed in the United States on February 27, 2026

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