SKU: 12334425631

Human SDF-1/CXCL12 (Stromal Cell Derived Factor 1) ELISA Kit

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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

Human SDF-1/CXCL12 (Stromal Cell Derived Factor 1) ELISA KitThis Stromal Cell Derived Factor 1 ELISA kit uses the Sandwich ELISA principle. The micro ELISA plate provided in this kit has been pre coated with an antibody specific to Human SDF 1 CXCL12. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human SDF 1 CXCL12 and Avidin Horseradish Peroxidase (HRP) conjugate are added successively to each micro

This Stromal Cell Derived Factor 1 ELISA kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Human SDF-1/CXCL12. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human SDF-1/CXCL12 and Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human SDF-1/CXCL12, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm  ± 2 nm. The OD value is proportional to the concentration of Human SDF-1/CXCL12. You can calculate the concentration of Human SDF-1/CXCL12 in the samples by comparing the OD of the samples to the standard curve.

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SKU: 12334425631

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J
Verified Purchase
Jonathan Burkeen
Dallas, US
★★★★★ 5
Already ordered more
Love it. So smooth and lasts for a while. Great for lips that chap all of the time.
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Reviewed in the United States on December 13, 2025
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Verified Purchase
wo5m
Whiting, US
★★★★★ 3
Great product, poor shipping
This product is great EXCEPT it arrived having melted into the cap and has a grainy texture (photo). I opted to send it back and received my replacement today. Unfortunately, it arrived in the exact same condition. The product has melted into the cap and texture is grainy. I will keep both as the product is great but I won't be reordering until they can figure out how to ship their lip balms without it melting. I've ordered other tallow lip balms and they didn't melt during shipping.
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Reviewed in the United States on October 10, 2024
M
Verified Purchase
MN Polk
Los Angeles, US
★★★★★ 5
No more split lips!!
Living in New England means dealing with really dry winters. Consequently, good hand lotion and lip balm makes a tremendous difference. Whereas Chapstick and many other common brands contain alcohols which can perpetuate problems, this Beef Tallow lip balm is the best I’ve found at preventing split lips.
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Reviewed in the United States on December 12, 2025
J
Verified Purchase
J. Hill
Pawtucket, US
★★★★★ 5
Lip balm
I had low expectations about this lip balm but after using it, my expectations are higher. I like how my lips are not only moisted but softer as well. Trust and believe, a little goes a long way.
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Reviewed in the United States on October 3, 2025
M
Verified Purchase
2Ms
Bozeman, US
★★★★★ 2
Pass
Our family is just getting started on the tallow journey so we’re learning. I have a son that deals with chapped lips continually so I thought I’d give this a shot. We were both horribly disappointed. Upon opening the balm a huge portion was smashed up into the lid. This is defeating the purpose of a lip balm. Also the texture is weird. It is crumbly and not able to spread easily. I hope this is a one off and not a tallow balm norm.
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Reviewed in the United States on January 29, 2025

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