Prep vs Finish Hair Products Explained: What’s the Difference & Why You Need Both

Not sure when to use prep or finish hair products? This simple guide explains the difference, how they work, and why using both gives longer-lasting styles.

Prep vs Finish Hair Products Explained: What’s the Difference & Why You Need Both

When it comes to styling hair, many people focus only on the final step — shine sprays, oils or texture products. But the truth is, long-lasting, salon-quality styles start before the heat styling begins.

Understanding the difference between prep products and finish products can completely change how your hair looks, feels and holds throughout the day.

Here’s how they work, when to use them, and why both matter.


What Are Prep Products?

Prep products are applied before blow-drying or heat styling. Their role is to prepare the hair so styling is easier, quicker and longer-lasting — while also protecting hair health.

What prep products do

  • Protect hair from heat damage

  • Reduce frizz and flyaways

  • Improve smoothness and manageability

  • Help styles last longer

  • Speed up drying time

Think of prep products as the foundation of your hairstyle.


Examples of Prep Products

Davines Blow Dry Primer
A lightweight leave-in spray that preps hair for blow-drying, protects against heat and humidity, adds light body and helps styles last longer.

ghd Bodyguard Heat Protect Spray
A heat protection essential that shields hair from styling tools while keeping it smooth, soft and easy to style.


When to use prep products

  • On towel-dried or damp hair

  • Before blow-drying or using heat tools

  • Every time you style with heat

Skipping prep often leads to styles that drop faster, frizz more easily and require more heat to maintain.


What Are Finish Products?

Finish products are applied after styling. Their purpose is to refine, enhance and lock in the final look.

They don’t prepare the hair — they perfect it.


What finish products do

  • Add texture, definition or hold

  • Boost shine or smooth flyaways

  • Help styles last longer

  • Control frizz and humidity

  • Add movement without stiffness

Finish products should never feel heavy or greasy when used correctly.


Examples of Finish Products

Davines Dry Texturizer
A lightweight finishing spray that adds soft texture and grip, helping waves and volume last longer without stiffness or residue.

Lightweight oils or shine sprays
Used sparingly on mid-lengths and ends to add polish and smoothness without weighing hair down.


When to use finish products

  • Once hair is fully styled

  • After curls or waves have cooled

  • As the final step before leaving the house


Prep vs Finish: The Key Differences

Prep Products Finish Products
Used before styling Used after styling
Protect hair from heat Enhance and lock in the style
Improve manageability Add texture, shine or hold
Help styles last longer Perfect the final look

Both serve different purposes — and both are essential.


Why Using Only One Isn’t Enough

Using a finish product without proper prep is like polishing hair that hasn’t been protected or supported — the style may look good briefly, but it won’t last.

Likewise, using only prep products without finishing means the style lacks definition, texture or longevity.

The best results always come from combining both.


A Simple Styling Routine That Works

  1. Prep
    Apply a blow-dry primer or heat protectant to damp hair.

  2. Style
    Blow-dry or heat style using professional tools.

  3. Finish
    Add a lightweight texturizer or shine product to define and hold the style.

This approach gives:

  • Longer-lasting styles

  • Less frizz

  • Better shine

  • Healthier-looking hair


Stylist Tip: Less Product, Better Results

Using the right products at the right stage means you need less overall. Prep supports the style, finish refines it — no overloading required.


Explore Prep & Finish Essentials

Discover professional prep and finishing products designed to protect your hair, improve styling results and keep your look lasting longer.