Each 40-gram tablet is formulated for a single shower session, typically lasting between 10 to 20 minutes. The key oils begin to release aromatic compounds as the tablet is exposed to steam from hot water. While scent perception can vary based on individual sensitivity and shower temperature (e.g., 40-50°C), the quantity is designed to provide a noticeable aroma for the duration of a standard shower cycle (approx. 30-50 liters of water). This allows for a consistent home spa experience without premature dissipation.

The product lists specific scents derived from key oils, such as Lavender (known for relaxation), Menthol & Eucalyptus (for clarity), and Peppermint (for invigoration). The manufacturer states these are "natural fragrances" and "key oils," and that the product is "crafted in the USA." However, specific details regarding therapeutic grade classification (e.g., USP, ISO standards) or detailed sourcing information are not publicly provided. The focus remains on delivering pleasant, natural aromas for relaxation and mood enhancement, without specifying purity percentages.

The formulation likely includes binders and effervescent agents that control the dissolution rate when exposed to steam, not direct water immersion. The 40-gram weight suggests a density and composition designed for gradual release over a 10-20 minute shower, potentially involving ingredients like citric acid and sodium bicarbonate for the fizzing action. While specific chemical compounds are proprietary, the process relies on controlled chemical reactions triggered by heat and humidity (above 30% RH), ensuring the aroma is diffused rather than washed away quickly.

While the product is designed for aromatherapy and uses natural key oils, the concentrated release of volatile organic compounds (VOCs) in steam could potentially affect individuals with sensitive respiratory systems, such as those with asthma or severe allergies. The product is labeled for "All Skin Type" but does not specify respiratory compatibility or provide an air quality index (AQI) guideline for usage. It is advisable for individuals with such conditions to consult with a healthcare professional or perform a cautious test in a well-ventilated bathroom (e.g., with the door open) before regular use.