Smoothing Treatment Therapy Extra

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This revolutionary smoothing system utilizes the same incredible micro-emulsion nanotechnology to create beautifully smooth, frizz-free hair for months at a time!


Methylene Glycol is the active ingredient.

The cells in the hair are like an egg shape, when damaged they resemble a pine cone.  The clarifying shampoo opens the cuticle allowing the keratin to enter into all the cracks and crevices.  The methylene glycol then seals the keratin into the hair when it is heated with a flat iron.

When heated, methylene glycol will emit a formaldehyde gas.  It is a very low level released into the air when using the product as directed.

This revolutionary formulation is perfect for all hair types, smoothing even the most resistant and delicate hair.

Smoothing lasts up to 4 months or more with use of our MACVOIL home maintenance program and products.