Ptil Tekhelet provides genuine Tekhelet strings so Jews can once again fulfill the mitzvah of wearing Tekhelet on their Tzitzit.

About 1300 years ago, the secrets of Tekhelet, this wondrous blue color and the identity of the mysterious sea creature  – the Chillazon – that produced the dye was lost. Over the past half-century, a convergence of research and discoveries by Rabbis, scientists, archaeologists, and others has led to the conclusive identification of the sea-snail, Murex trunculus, as the authentic source of Tekhelet.

Tekhelet Overview

Find out more about the mitzvah of Tekhelet and its meaning, how Tekhelet is made and the history of its loss and rediscovery in our time

Buy Tekhelet Now

Ordering Tekhelet is simple with our online store. A large selection of pre-tied garments, strings, books and educational material

Tying Resources

Get answers as how to choose from the different string types and tying methods, what size Tallit or Tzitzit is best for you and more


Browse or search our online library featuring hundreds of articles and audio or video lectures and shiurim on all topics related to Tekhelet

New and Noteworthy

Tekhelet Factory Tour

Book Your Tekhelet Factory Tour!

Torah, Jewish History, Chemistry and Biology come alive as you learn about the ancient world’s most valuable color.

Be sure to book in advance to ensure your place!

Click Here for more information.

Hechsher – Rabbinic Certification

Ptil Tekhelet’s production is now certified Badatz Mehadrin

under the authority of Harav Avraham Rubin of Rechovot, Israel

Click Here to see the certification and its translation

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To Date, More Than


Sets of Tekhelet Produced

City Cloud of Tekhelet Wearers in Israel

Distribution of people wearing Tekhelet Placeholder
Distribution of people wearing Tekhelet
Distribution of Tekhelet Wearers Around the World