The Rosin That Speaks for Itself
Handcrafted in the Netherlands. Developed with players from the Royal Concertgebouw Orchestra. Now available in the United States.
Developed with orchestral musicians at the highest level
Every cake made with care in small batches in Groningen
100% recyclable packaging, no unnecessary waste
Top-tier quality without premium markups for fancy packaging
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A Rosin For Every Instrument
Handcrafted formulas developed for each string family — bass, cello/gamba, viola, and violin. Choose your instrument, and for bass, your preferred hardness.
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All products handcrafted in Groningen, Netherlands. Ships from the US.
Our Story
No Frills. Pure Quality.
050 Rosin was born in Groningen, the Netherlands, from a simple observation: professional musicians deserve top-quality rosin without paying a premium for fancy packaging and marketing fluff.
Founded by a professional classical and early music bassist, every cake is handcrafted with a focus on what actually matters — tone, grip, consistency, and reliability.
The "050" in the name is the area code for Groningen, a city with a rich musical heritage. The rosin is developed in collaboration with some of the finest players in Europe, including members of the Royal Concertgebouw Orchestra.
We let the rosin speak for itself — rather than the packaging.
The Science
How Rosin Creates Sound
Rosin is the essential interface between bow and string. Without it, no sound is possible. Here's the physics behind every note you play.
Rosin-coated bow hair grips the string through adhesion, pulling it aside
When tension overcomes friction, the string snaps back, creating vibration
This cycle happens hundreds of times per second, sustaining the musical tone
The formulation of rosin — its hardness, melting point, and stickiness — directly affects tone quality, bow response, and dust production. That's why different formulas exist for different playing styles, instruments, and climates. Our instrument-specific formulas — with three hardness options for double bass — are carefully calibrated to cover the full range of professional needs.
The 050 Difference
Professional Quality, Honest Price
See how 050 Rosin compares to other popular brands.
| Brand | Price Range | Handmade | Eco Packaging | Pro Developed |
|---|---|---|---|---|
| 050 Rosin | $22.50 – $28 | Yes | 100% Recyclable | Royal Concertgebouw |
| Leatherwood Bespoke | $45 – $74 | Yes | Partial | Yes |
| Cecilia | $37 | Yes | No | Yes |
| D'Addario Kaplan | $15 – $20 | No | No | Yes |
| Pirastro | $15 – $45 | No | No | Yes |
| Bernardel | $10 – $15 | No | No | No |
What Musicians Say
Trusted by Players Worldwide
Having tried tens of products, with its tone, grip, level of dust and residue, I can honestly say that this is the best rosin ever made.
I used Kolstein Soft before, but think soft 050 rosin stays active longer on the bow. Good grip but not too dark.
We've rosined up some bows and tried the formulations here at the shop — and we found that these rosins are both very smooth and easy to use.
Questions?
Get in Touch
Need help choosing the right rosin for your instrument or playing style? We're happy to help.