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.

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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

Daf Yomi – Perek HaTekhelet (Menachot 38a)

Once every seven years, daf yomi learners reach the 4th chapter of Menachot, which includes the largest Talmudic concentration of laws pertaining to Tzitzit and Tekhelet. Ptil Tekhelet has collected various articles, shiurim and other resources to aid those interested in understanding the Talmud’s discussion.
Click here for our Daf Yomi resource page
Click here to view or download the Daf Yomi pamphlet

Out Of The Blue

Out of the Blue | From the Depth of the Sea to the National Flag

A new exhibition at the Bible Lands Museum in Jerusalem, which follows the thread of the mysterious blue color, Tekhelet, from the Mediterranean shores over 3,500 years ago to the national colors of the State of Israel
Opening on June 1, 2018
For more information click here

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

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.

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