Cooper Delivered · Hair Lab · Ingredient Guide
What’s Really in Your Shampoo? Ingredients Explained (And What to Avoid)
Most people don’t realise what they’re actually washing their hair with.
Flip your shampoo bottle over and read the label — because what’s inside might surprise you.
It’s not just “hydration” and “shine.” It’s a mix of detergents, fillers, and additives designed to feel good fast… not necessarily perform long-term.
What is shampoo actually made of?
Most bottled shampoos are made up of:
- Water (often up to 80–90%)
- Detergents (to create foam and cleanse)
- Conditioning agents (to create a smooth feel)
- Fragrance and preservatives
The problem isn’t that these exist — it’s how they’re used.
Common shampoo ingredients explained
Sodium Laureth Sulfate (SLES)
A cleansing agent that creates foam. Effective at removing oil — but can be too harsh for some scalps when used frequently.
Silicones
Coat the hair to create smoothness and shine. Over time, this can lead to buildup if not properly removed.
Fragrance
Often listed as a single ingredient but can contain multiple compounds. This is where many sensitivities can come from.
PEGs
Used to help ingredients mix and absorb. Common in many personal care products.
Are these ingredients bad?
Not always — but they’re not always necessary either.
Many traditional shampoos are designed for:
- Immediate results (foam, shine)
- Short-term feel
- Mass production efficiency
That doesn’t always translate to long-term hair or scalp health.
Why your hair can feel worse over time
If your hair feels:
- Dry but oily at the roots
- Heavy or coated
- Flat or lifeless
It can be a sign of buildup or over-cleansing.
This often leads people to use more product — which continues the cycle.
The difference with concentrated formats
This is where things shift.
Concentrated products (like bars) remove:
- Excess water
- Unnecessary fillers
- Heavy packaging
What’s left is a more direct formula — focused on function rather than bulk.
A simple comparison
| Feature | Typical Bottle | Concentrated Bar |
|---|---|---|
| Water content | High | None |
| Packaging | Plastic | Minimal |
| Longevity | Shorter | Longer |
| Buildup risk | Higher | Lower |
The real takeaway
It’s not about fear.
It’s about awareness.
Once you understand what’s in your shampoo, you can decide what actually works for you — not just what’s marketed to you.
Start with one switch
You don’t need to change everything overnight.
Just start by understanding what you’re using — and make one better choice from there.