Nordic Timber NutritionLight Transmission and Micronutrient Stability
Active vitamins and natural pigments decompose when exposed to electromagnetic radiation in the ultraviolet and visible blue spectrums (wavelengths between 290 and 450 nanometers). Photodegradation alters molecular bonds, leading to inactive degradation byproducts. Amber high-density polyethylene, known as amber HDPE, incorporates specialized colorants that absorb actinic radiation, shielding the interior contents.
Wavelength Filtration Properties
Amber polymers filter out more than 90 percent of incoming radiation below 450 nanometers. This barrier protects photosensitive ingredients, such as black carrot anthocyanins and sensitive botanical co-factors, from photo-oxidation. The dense molecular structure of polyethylene also serves as an effective moisture vapor barrier.
- Moisture vapor barrier: Amber HDPE exhibits a low water vapor transmission rate, preserving gummy firmness.
- Impact resistance: Unlike amber glass, HDPE does not crack or shatter when dropped onto hard tiled surfaces.
- Material inertness: The polymer does not leach plasticizers or phthalates into the nutrient matrix across standard temperature ranges.
Practical Storage Instructions
Store amber containers in dry locations out of direct sunlight, such as an interior pantry or cabinet. Avoid high-humidity environments like bathrooms, where frequent steam can bypass container threads during daily openings. Secure the cap fully after each removal.