Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
GCK Protein, HumanProduct Specification Species Human Accession P35557 Amino Acid Sequence M1 Q465 end Expression System E. coli Molecular Weight 52. 2 KDa Conjugation Unconjugated Tag No Tag Physical Appearance Liquid Storage Buffer 50 mM Tris HCl (pH 7. 5), 200 mM NaCl, 20% glycerol, 1 mM DTT. Stability & Storage 80 Guidelines Please use rapid thawing with running water to thaw the protein samples. For complete recovery, mix well and spin before use. Product must not
Product Specification
| Species | Human |
| Accession | P35557 |
| Amino Acid Sequence | M1-Q465 end |
| Expression System | E.coli |
| Molecular Weight | 52.2 KDa |
| Conjugation | Unconjugated |
| Tag | No Tag |
| Physical Appearance | Liquid |
| Storage Buffer | 50 mM Tris-HCl (pH 7.5), 200 mM NaCl, 20% glycerol, 1 mM DTT. |
| Stability & Storage | -80℃ |
Guidelines
Please use rapid thawing with running water to thaw the protein samples.
For complete recovery, mix well and spin before use.
Product must not be stored in diluted solutions.
Aliquots below 10μl are not advisable.
Avoid repetitive freeze-thaw cycles!
For complete recovery, mix well and spin before use.
Product must not be stored in diluted solutions.
Aliquots below 10μl are not advisable.
Avoid repetitive freeze-thaw cycles!
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
4.4 ★★★★★
Based on 717 reviews
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Product Reviews
★★★★★ 5
Best mineral sunscreen
Size: 3.4 Fl Oz (Pack of 1)
Mineral sunscreen that isn’t chalky or pasty.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
★★★★★ 1
Product leaks into the cap
Size: 3.4 Fl Oz (Pack of 1), Size: 3.4 Fl Oz (Pack of 1)
The packaging appears to be defective and potentially tampered with. Specifically, the nozzle is a different color from the rest of the tube—one that is not consistent with the brand’s standard packaging (I am familiar with this brand and have purchased it before). Additionally, the cap does not close properly, causing the product to leak into the lid and resulting in unnecessary waste.
This raises serious concerns about the product’s authenticity, quality control, and whether it may have been previously opened or altered.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
★★★★★ 5
Best facial sunscreen I have used
Coola makes the best facial sunscreen, and I have tried many brands previous to using Coola. The texture is light and creamy without being oily, absorbing well and leaving no white residue. It does not clog my pores and nor cause those white bumps that last for months. Coola sunscreen works well to protect my skin from sunburn and from making more freckles and dark spots. It has no perfumy fragrance, much to my relief.
Once it has dried, I can apply concealer or powder over it. No oily streaks or caking of other make-up so I have no excuse to avoid wearing this sunscreen every day.
I have recommended Coola facial sunscreen to my friends who had laser dermabrasion. Their skin is more sensitive to both perfumed chemicals and sun exposure, and they have given good reports too.
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Reviewed in the United States on August 31, 2024
★★★★★ 5
Pricey, but worth it.
Coola products were included in a swag bag for a work vacation at a resort & I’ve not looked back. (The smell of the body spray sunscreen made me wish I could eat it, tbh.) This product has become my daily sunscreen as it’s the only one I’ve tried that doesn’t cause my skin to break out. I love the natural ingredients in their products AND that it doesn’t add to reef barrier breakdown. I only wish the brand wasn’t so pricey, but the benefits are worth it to me.
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Reviewed in the United States on December 23, 2025
★★★★★ 5
Best sunscreen ever
Best sunscreen ever, never get burned when I use it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
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