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BoxNutra is now a proud partner with Affirm! Pay at your own pace!
BoxNutra is now a proud partner with Affirm! Pay at your own pace!


Starts at: $28.00
What is L-Threonine?

L-Threonine is an essential amino acid helps to maintain the protein balance in the body. Important for collagen, elastin, and tooth enamel formation and helps liver and lipotropic function when combined with aspartic acid and methionine.

L-Threonine Benefits:

L-Threonine includes many benefits for your hair skin and nails. It can also be beneficial for your bones and joints.

Benefits Include:
  • Hair, Skin & Nails
  • Heart Health
  • Protein Balance
  • Amino acids


Certifications? We Got You Covered! 
CGMP refers to the Current Good Manufacturing Practice regulations enforced by the FDA. CGMPs provide for systems that assure proper design, monitoring, and control of manufacturing processes and facilities. Having a CGMP facility assures the identity, strength, quality, and purity of the products we produce.

Regulatory Compliance | CareWear

FDA regulates both finished dietary supplement products and dietary ingredients. Because dietary supplements are foods, manufacturers, packers and storage facilities are subject to FDA Food Facility Registration regulations.


 We Stand By Our Products.  
This is why we offer a no questions asked FULL Money Back Guarantee.  If you are not satisfied with any of our products, you will receive a full refund.  No questions asked.

Always consult your health care provider before taking any supplements. Pregnant or lactating women, people with existing medical conditions, or people taking medications should consult their health care provider/s before taking any dietary supplement. If you experience any adverse condition after taking this dietary supplement, discontinue use immediately and consult your health care provider.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.