I use this to increase my oxygenation at the cellular level:

Check out my blogpost where I go into detail about its pros and cons: https://chienergize.com/unlocking-your-cells-how-to-shift-from-carbs-to-protein-and-fats-for-better-energy-and-health/

• Promotes Health – Our specially formulated methylene blue for humans is designed to support the energy production capabilities of mitochondria and promote blood and oxygen flow to the brain.
• Antioxidant Support – Our pharmaceutical-grade methylene blue is packed with antioxidants, which play a critical role in reducing free radicals in the body.
• Energy & Metabolism – Methylene blue helps to promote autophagy, which helps maintain cellular health and prevents the accumulation of harmful substances.
• Quality Testing, Safe Packaging – Our pharmaceutical-grade methylene blue for humans comes in glass bottles for easy dispensing and potency preservation. Contains high-purity, USP-grade methylene blue and undergoes rigorous testing to ensure quality.
• Love It or Return It Guarantee – We pride ourselves on the quality of our ingredients and we just know you’ll love your results! We’re here to help you choose a healthier lifestyle. Consult your healthcare practitioner before use. Not for pregnant or nursing women.