TB-500（Thymosin Beta 4）20mg

Thymosin beta-4 is a protein that in humans is encoded by the TMSB4X gene. The protein consists (in humans) of 43 amino acids (sequence: SDKPDMAEI EKFDKSKLKK TETQEKNPLP SKETIEQEKQ AGES) and has a molecular weight of 4921 g/mol. Thymosin-β4 is a major cellular constituent in many tissues. Its intracellular concentration may reach as high as 0.5 mM.Following Thymosin α1, β4 was the second of the biologically active peptides from Thymosin Fraction 5 to be completely sequenced and synthesized. This gene encodes an actin sequestering protein which plays a role in regulation of actin polymerization. The protein is also involved in cell proliferation, migration, and differentiation. This gene escapes X inactivation and has a homolog on chromosome Y (TMSB4Y). Order Guide Q1: Have your Product Quality been Approved by Third Party Lab? A: Yes, All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France etc. So you will be assured with Good Quality if you choose us.  Q2:How do you treat quality complaint? A:First of all, our QC department will do strict examination of our export products by HPLC, UV, GC ,  TLC and so on in order to reduce the quality problem to near zero. If there is a real quality problem ,caused by us, we will send you free goods for replacement or refund your loss. Q3: Do you Accept Sample Order? A: Yes, we accept small order from 10g, 100g and 1kg for your evaluation quality of our goods. Q4: Is there any discount? A: Yes, for larger quantity, we always support with better price.  Q5:Do you accept VISA business credit card ? A:Sorry we don't accept VISA credit card, we'd like to accept bank transfer, Western Union or  Moneygram Q6:How long does it take to the goods arrived ? A:It is Depending on your location,     For small order, please expect 5-7 days by DHL,UPS,TNT, FEDEX, EMS. For mass order, please allow 5-8 days by Air, 20-35 days by Sea. Q7  Do  you  have  any  reshipment  policy ?   we have good after-sale service and re-shipment policy if the parcel  lose Our long association with  our clients has brought great benefits We always take the upmost care in the packaging of our products  our clients will confirm this as even they struggle to find them without help at times. But in spite of our best efforts it is still possible  will seize a small number of packages. In this circumstance we promise reship free  to establish  long term relationship Q8 :Can I get a sample? A: Of course. For most products we can provide you a free sample, while the shipping cost shouldundertake by your side. As a leading manufacturer of steroid raw materials  .and  Peptides  We specialized in manufacturing high quality and reliable raw material  which are widely used in the fields of food, health, cosmetics, pharmaceuticals, and Bodybuilding we have formed a technology and management team that cooperate closely with some  overseas Labs  all speak highly of our safe shipping and goods . please donot hesitate to contact us.