528 Hz (Solfeggio)
528.00 Hz
Nearest note: C5, 16 cents above standard tuning
A tone from a set published in 1999. Proponents say it repairs DNA. The studies this site found did not test that.
How well is this supported?
A claim that has not been established. Evidence is missing, weak, or limited to small studies.
This number is here because people make claims about it. The entry says what is claimed and what has been tested. It is not advice about health.
The button plays a plain tone. Start with the volume low.
About this number
528 Hz is the third of the six original Solfeggio tones, and perhaps the best known. The set was published by Leonard Horowitz and Joseph Puleo in 1999. Puleo is credited with deriving the numbers from verse numbers in the Book of Numbers. The syllable names used with the tones come from a medieval hymn. Medieval singers used those syllables to name notes relative to each other, not to fix frequencies.
What is said about it
What is said, not what was measured
Proponents call this the “Miracle tone” or the “Love frequency”, and associate it with DNA repair and transformation. What has been tested: one study of nine people found lower stress markers after five minutes of music tuned so that 528 Hz falls in its scale (A = 444 Hz). A 2026 trial in 100 people combined recorded 528 Hz audio with bowls and gongs and reported lower anxiety than in a group that listened to music online; its authors say the parts of the session cannot be told apart. Two further studies used rats and cell cultures. None tested a plain 528 Hz tone on its own in people, and none addressed DNA repair in people.
Facts
- Frequency
- 528.00 Hz
- Wavelength in air (20 °C)
- 65.0 cm
- Nearest note
- C5, 16 cents above standard tuning
- Color paired with it
- Green (516 nm)
- Kind of statement
- Claimed frequency
- Filed under
- Claimed frequencies
Sources
- Horowitz & Puleo — the Solfeggio tones
The book that introduced the six original Solfeggio tones. Cited as the origin of the claim, not as evidence for it.
Leonard G. Horowitz and Joseph Puleo, Healing Codes for the Biological Apocalypse (Tetrahedron, 1999).
- Studies that involve 528 Hz
One study in nine people, of music tuned so that 528 Hz falls in its scale (A = 444 Hz). One study in rats, one in cell cultures. None tested a 528 Hz tone in people.
K. Akimoto et al., Health 10 (2018) 1159–1170. T. Babayi Daylari et al., Genes & Genomics 41 (2019) 201. T. Babayi and G. H. Riazi (2017).
View source: Studies that involve 528 Hz - A trial of sound sessions that included recorded 528 Hz audio
A randomized trial in 100 people. The sessions combined recorded 528 Hz audio with bowls and gongs, so the parts cannot be told apart.
H. Ravikumar and S. Sathyanarayanan, Cureus 18 (2026) e115693.
View source: A trial of sound sessions that included recorded 528 Hz audio
More about the pitch
The same note in every octave
Each step doubles or halves the frequency. Tap one to hear it.
Entries close in pitch
Within 35 cents of this tone, in any octave. A cent is one hundredth of the step between two neighboring piano keys. Being close in pitch does not mean two things are connected.