tea tree oil
Supplement
Used in the speaker's oral care routine; the speaker's dentist noted a significantly lower plaque index and improved gum health.
Mentioned in 2 videos
Videos Mentioning tea tree oil

Female Hormone Health, Fertility & Vitality | Dr. Natalie Crawford
Andrew Huberman
Mentioned as an oil with potential endocrine-disrupting effects, found in many natural shampoos.

My Evening Routine - Top 1% Sleep Ranking
Bryan Johnson
Used in the speaker's oral care routine; the speaker's dentist noted a significantly lower plaque index and improved gum health.