An oil check is much more accurate and effective than a dry check. Applying oil slows lice movement, improves visibility, and allows our technicians to identify both live lice and eggs more reliably.
Dry checks often miss early infestations or active lice that move quickly through the hair.

Yes. We use child-safe, non-toxic products that are gentle on the scalp and hair. Oil checks are comfortable, effective, and widely considered the gold standard for professional lice detection and removal.

We offer a 15-day  guarantee because it aligns with the natural life cycle of head lice and the effectiveness of proper aftercare. When treatment is completed thoroughly and aftercare instructions are followed, any remaining eggs would hatch within 7–10 days, and newly hatched lice would be detectable before reaching maturity.

To ensure accuracy and fairness, verification of a re-infestation during this 15-day period requires clear, properly taken photos or video showing live lice. This helps us distinguish between active lice, empty egg casings, dandruff, or debris, which are often mistaken for reinfestation.

Oil-based treatment: Slows and immobilizes lice
Makes eggs easier to see and remove
Reduces discomfort and pulling. Allows for a more thorough, efficient treatment. Dry combing alone is more likely to miss live lice or eggs, increasing the risk of reinfestation.

Extra virgin olive oil is more effective for smothering lice because it is less processed and retains its natural molecular structure. On a microscopic level, lice breathe through tiny openings called spiracles. Extra virgin olive oil has a thicker, more stable lipid composition, allowing it to fully coat the hair and scalp and seep into these openings, blocking oxygen and effectively smothering lice.

Regular or refined olive oils are processed with heat and filtration, which alters their molecular integrity and makes them thinner. This lighter structure does not seal the spiracles as effectively, reducing its ability to suffocate lice.

Extra virgin olive oil also contains naturally occurring fatty acids and antioxidants that help protect the scalp and hair during extended contact, making it ideal for overnight oiling treatments. This ensures effective lice control while keeping hair nourished and minimizing irritation.

For these reasons, we exclusively recommend extra virgin olive oil for aftercare and oiling nights, it provides superior lice smothering while being gentle and safe for the scalp

Most initial treatments take 2–3 hours, depending on hair length, thickness, and the severity of infestation. We’ll always explain what to expect before starting and keep you informed throughout the visit.

Guarantees rely on the ability to control exposure and verify outcomes. In group environments such as group homes, childcare centers, and schools, individuals are in frequent close contact with others, often with shared spaces and personal items. These settings create a high risk of ongoing exposure and reinfestation that is beyond the control of any single treatment or provider.

Because NitFreeCO cannot control or verify continued exposure, hygiene practices, or treatment compliance among all individuals in these environments, outcomes cannot be reliably assessed or attributed to the original service. For this reason, guarantees are not offered in group settings where reinfestation risk is ongoing and unmanageable.

Lice removal is typically performed in the kitchen because it offers a clean, well-lit, and controlled environment with non-porous surfaces that can be easily disinfected. Kitchens provide adequate space, stable seating, access to running water if needed, and improved visibility, all of which support effective inspection, manual removal, and proper sanitation.

Bathrooms are generally not recommended because they often lack sufficient lighting and workspace, may have higher humidity, and frequently contain porous items such as towels and bath mats that increase the risk of cross-contamination. Limited space can also make it difficult to maintain proper positioning and sanitation during the service.

Outdoor settings are not recommended because they are uncontrolled environments. Wind, variable lighting, weather conditions, insects, and environmental debris can interfere with accurate inspection and removal, reduce sanitation control, and compromise service quality and safety.

Using the kitchen helps ensure the service is completed efficiently, hygienically, and with the highest level of care.

For these reasons, performing lice removal in a bathroom or outdoor setting voids the 15-day guarantee. The guarantee is based on services being completed in a controlled environment that allows for thorough inspection, proper sanitation, and consistent quality standards. When services are performed in locations that limit visibility, sanitation, or environmental control, NitFreeCO cannot reliably verify treatment conditions or outcomes, and therefore the guarantee cannot be upheld.