Evidence & Bioavailability Status | Nutrioz Vitamin D3 Oral Spray                                              Evidence & Bioavailability Status | Nutrioz Vitamin D3 Oral Spray Skip to content

Evidence & Bioavailability Status — Nutrioz Vitamin D3 Oral Spray

Science Transparency

Evidence & Bioavailability Status

Nutrioz Vitamin D3 Oral Spray — Molecular Spray Technology®


Delivery Mechanism

Nutrioz Molecular Spray Technology® is engineered for oral mucosa absorption — not swallowed like a tablet or capsule. Each spray delivers 0.06 ml of active Vitamin D3 formula directly to the oral mucosa for rapid uptake.

Spray volume: 0.06 ml per spray

Bottle volume: 14.4 ml

Sprays per bottle: 240 (14.4 ml ÷ 0.06 ml)

Absorption route: Oral mucosa (sublingual/buccal)

Published Study Status

Nutrioz-specific published clinical bioavailability study: Not yet published. Product specification data, delivery-mechanism rationale, quality documentation, and a validation roadmap are available upon request.

Bioavailability Rationale

Oral mucosal delivery bypasses first-pass hepatic metabolism, which is associated with higher bioavailability potential compared to standard oral tablet or capsule formats. This mechanism is well-documented in peer-reviewed pharmacokinetic literature.

Next Validation Target

A clinical study measuring serum 25(OH)D levels before and after Nutrioz Vitamin D3 Molecular Spray use, ideally with comparison against a conventional D3 tablet or capsule.

Primary marker: Serum 25-hydroxyvitamin D [25(OH)D]

Comparator: Conventional D3 tablet or capsule

Status: Planned / Not yet initiated

Evidence Status

Specification Data Available

✔ Product specification sheets available

✔ Delivery mechanism rationale documented

✔ Quality and manufacturing documentation available

⏳ Clinical bioavailability studies: In progress / Not yet published


Nutrioz does not hide what is proven and what is still being validated.

Same Day Dispatch

All orders placed before 2 p.m. Monday to Friday are dispatched same day.

Learn more

Free & Fast Delivery

A free, fully trackable delivery service is included on all orders over $50.

Learn more

Exchanges & Returns

You have 30 days from the shipping date to return your purchase for free.

Learn more