SUNLESS SCIENCE
COLOROLOGY
CARE AND MAINTENANCE
MORE SUNLESS FACTS
PREP, POST + SAFETY
100

This sugar-based active ingredient reacts with the amino acids in the stratum corneum to create a tan.


What is DHA (Dihydroxyacetone)?

100

This bronzer free solution is perfect for a first time client that wants gradual color development.

What is Clear Plus?

100

To prevent condensation, solution should never be stored here.

What is the refrigerator?

100

The stratum corneum, the target of DHA, is made up of these dead skin cells.

  1. What are corneocytes?
100

The FDA restricts DHA from being used on these areas.

What are lips and mucous membranes?

200

The DHA reaction in the skin is chemically similar to this food-based browning reaction.


What is the Maillard reaction?

200

Developed to mimic Mediterranean skin tones, this international best seller looks great on everyone. 

What is Venetian?

200

Used solution can be stored for up to this long in an airtight container.

What is 24 hours?

200

The average spray tan provides about this many days of GOOD color before noticeable fading.


  1. What is 3–4 days?
200

Before spray tanning, Norvell recommends this step for pregnant women.

What is consult with their physician?

300

The tan from DHA typically lasts this many days due to natural skin exfoliation.


What is 5–7 days?

300

Formulated with a higher percentage of DHA, this solution is often used for bodybuilders and swimsuit models.

What is Competition?

300

If a DHA solution freezes, thaw it in this manner.

What is at room temperature?

300

The Norvell Rapid ONE system gives clients control over this key factor in their tan outcome.

What is light, medium, dark color?

300

According to FDA recommendations, these protective items should be offered to clients (name two).

What are nose filters, lip balm, protective eyewear, earplugs, or undergarments?

400

A pH balancing spray helps DHA work by doing this to the skin.

What is adding amino acids to the skin?

400

Characterized by caramel and rose gold notes, this solution is ideal for Fitzpatrick V.

What is Tuscan Plus?

400

This is the maximum recommended temperature range for storing spray tan solution.

What is 75–86°F?

400

Very light, blonde, or gray hair may discolor slightly from bronzers, but this simple item can prevent it.


What is a hair net?

400

Clients should wait at least this long before entering a pool, spa, or ocean after tanning.

What is 24 hours?

500

If clients shower with soap in the first 24 hours, this happens to DHA development.

What is development is halted?

500

A cross section of Dark and Venetian, this solution is formulated with natural and organic ingredients. 

What is Cosmo?

500

This is what happens when DHA solution is exposed to air.


What is oxidation and reduced effectiveness?

500

Norvell uses this proprietary odor inhibitor to reduce DHA smell.


  1. What is Ordenone™?
500

Clients should wear this type of clothing after a spray tan to prevent streaking or smearing.

What is dark, loose-fitting clothing?

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