Cooper Delivered · Hair Lab · Oily Hair · Ingredient Education
What to Look for in a Shampoo for Oily Hair
Oily roots don’t automatically need the harshest shampoo you can find.
A better place to start is understanding what your shampoo is actually made from, how the cleansing system works and what the complete formula was designed to do.
Because when it comes to oily hair, one fashionable ingredient rarely tells you the whole story.
Start with the formula, not the marketing
If your roots become oily quickly, it can be tempting to reach for whatever product promises the strongest detox, deepest cleanse or biggest reset.
As a hairdresser, I would rather start somewhere else.
Read the formula.
A shampoo isn’t usually effective because of one hero ingredient printed across the front of the packaging.
It is the combination of cleansing agents, supporting ingredients, conditioning ingredients and the way the entire formula works together that determines how that shampoo behaves on your hair.
This becomes especially important with shampoo bars.
Two bars can look almost identical in your hand while having completely different ingredient systems inside them.
So if you’re trying to find the right shampoo bar for oily hair, don’t stop at the front label.
Turn it around.
Let’s look at what is actually doing the work.
1. Look at the cleansing surfactants
Surfactants are the ingredients responsible for much of the cleansing action in shampoo.
They help water interact with oil, sweat and residue so those materials can be loosened from the scalp and rinsed away.
In the Cooper Delivered Detox Shampoo Bar, the cleansing system includes:
- Sodium Coco-Sulfate
- Cocamidopropyl Betaine
These ingredients matter far more to understanding how the shampoo cleans than whether the front of the packaging contains words such as natural, clean or detox.
I also don’t believe every surfactant should automatically be treated as something bad.
Ingredients have jobs.
For oily roots and product build-up, effective cleansing is one of them.
The useful question isn’t:
“Does this shampoo contain a surfactant?”
It is:
“What cleansing system does this shampoo use, and is it appropriate for what I’m trying to achieve?”
2. Bamboo charcoal: what is actually in our Detox Bar
The ingredient that gives the Cooper Delivered Detox Shampoo Bar much of its identity is bamboo charcoal additives.
Charcoal is commonly incorporated into cleansing formulations aimed at oil, residue and build-up.
That makes it relevant to the purpose of our Detox Bar:
- oily-feeling roots
- hair that feels heavy
- product residue
- those days when your scalp simply feels like it needs a proper cleanse
But here’s something I think matters even more than making charcoal sound exciting.
Ingredient accuracy.
Our current Detox Shampoo Bar ingredient documentation lists bamboo charcoal additives.
It does not list:
- kaolin clay
- tea tree oil
- apple cider vinegar
Those ingredients may appear in other shampoo bars.
They aren’t part of this formula.
So we’re not going to borrow somebody else’s ingredient story simply because it sounds good in an article.
If you’d like to learn more about the ingredients used throughout our range, visit the Cooper Delivered Ingredients Library.
3. Glycerin isn’t there to cleanse oil
The Detox Shampoo Bar also contains glycerin.
Glycerin is commonly used as a humectant, helping attract and retain water within cosmetic formulations.
This is a useful reminder that a detox-focused shampoo does not need to consist entirely of ingredients associated with removing oil.
A complete formulation can combine cleansing ingredients with ingredients that influence how the product feels during and after washing.
That’s why reading shampoo labels ingredient by ingredient without considering the complete formulation can become misleading.
Every ingredient isn’t trying to perform the same job.
4. What about shea butter, olive oil and palm oil?
This is where shampoo formulation becomes more interesting.
Our Detox Shampoo Bar also contains:
- shea butter
- olive oil
- palm oil
You will sometimes see blanket advice online telling people with oily hair to avoid every oil and butter they see on an ingredient list.
Haircare isn’t quite that simple.
Seeing an oil somewhere within an ingredient list does not automatically tell you how heavy the finished shampoo will feel.
Formulation matters.
Concentration matters.
The cleansing system matters.
How all the ingredients interact matters.
That is why I don’t believe in judging an entire shampoo by one ingredient alone.
The full Cooper Delivered Detox Shampoo Bar formula
If we’re going to teach people how to understand shampoo ingredients, then we should be prepared to show our own.
The current documented ingredient list for the Cooper Delivered Detox Shampoo Bar is:
Sodium Coco-Sulfate, Glycerin, Cocamidopropyl Betaine, Sodium Chloride, Palm Oil, Shea Butter, Bamboo Charcoal Additives, Olive Oil, Fatty Acids, Fragrance, White Mineral, Water, FD&C Yellow, FD&C Blue and FD&C Red.
The 20 g Detox Shampoo Bar uses the same formulation as the 80 g version.
There are ingredients in that list that aren’t glamorous.
That’s fine.
Ingredient transparency shouldn’t mean showing people only the ingredients that make beautiful marketing photographs.
It means showing the formula.
You can also explore our guide to reading shampoo ingredients like a hairdresser if you’d like to go deeper.
Are shampoo bars good for oily hair?
This is where I would change the question slightly.
Instead of asking:
“Are shampoo bars good for oily hair?”
Ask:
“What is this particular shampoo bar made from, and what was it designed to do?”
Not every shampoo bar is formulated the same way.
Some solid products are soap-based.
Others use surfactant-based shampoo systems.
Some contain high levels of oils and butters.
Others are designed around stronger cleansing systems.
Putting shampoo into a solid shape doesn’t automatically tell you how it will behave on oily hair.
You still need to understand the formulation.
How the Cooper Delivered Detox Bar fits oily hair
Our Detox Shampoo Bar uses Sodium Coco-Sulfate and Cocamidopropyl Betaine as part of its cleansing system, together with bamboo charcoal additives.
It also contains glycerin, palm oil, shea butter and olive oil as part of the complete formulation.
In other words:
It isn’t simply charcoal stuck into a bar.
It is a complete shampoo formulation selected within the Cooper Delivered range for people dealing with concerns such as:
- oily-feeling roots
- product build-up
- hair that feels heavy or coated
- a scalp that needs a more thorough cleansing wash
You can explore the full Detox Shampoo Bar guide or visit our dedicated Oily Hair Guide to work out whether it suits your routine.
Oily roots don’t always mean oily hair
This is one of the most important things I learnt behind the salon chair.
You can have an oily scalp and dry ends at exactly the same time.
You can also have:
- oily roots with colour-treated ends
- oily roots with heat damage
- oily roots with long, weathered lengths
- oily roots with naturally dry or textured hair
That is why I don’t automatically recommend aggressively cleansing every centimetre of hair simply because the roots become oily.
Shampoo should usually do most of its work around the scalp and root area where oil, sweat and build-up accumulate.
The lather moving through the lengths during rinsing is often enough for the older ends.
Conditioner can then be concentrated through the mid-lengths and ends where the hair needs more softness and support.
Treat the scalp and the lengths according to what each area actually needs.
A hairdresser’s oily-hair wash routine
If oily roots are your main concern, I would keep the routine simple.
- Wet your hair thoroughly.
- Work the shampoo primarily through the scalp.
- Massage gently with your fingertips rather than scratching.
- Rinse thoroughly.
- Repeat the shampoo if there is significant oil or product build-up.
- Apply conditioner mainly through the mid-lengths and ends.
- Rinse properly and allow the scalp to dry rather than leaving it damp for long periods.
Using more shampoo isn’t necessarily the answer.
Using it properly often matters more.
If you’re new to solid shampoo, read our How to Use a Shampoo Bar guide before deciding whether the product itself isn’t working.
Don’t choose oily-hair shampoo by buzzwords
Detox.
Natural.
Clean.
Clarifying.
Salon.
Botanical.
These words can help describe a product.
They cannot replace the ingredient list.
If you’re trying to understand whether a shampoo may suit oily hair, look beyond the front label.
Ask:
- What are the cleansing ingredients?
- Is this actually shampoo or a soap-based cleansing bar?
- What supporting ingredients are present?
- What is the product designed for?
- Does the brand clearly disclose its ingredients?
- Does the advice around the product make sense for your particular hair?
That’s far more useful than chasing whatever ingredient happens to be trending this month.
Sustainability shouldn’t require vague ingredient claims
Cooper Delivered is an Australian-owned business run from rural Western Australia.
Our shampoo bars offer a lower-plastic alternative to traditional bottled shampoo.
But sustainability isn’t an excuse to lower the standard of our haircare education.
If we’re going to ask people to question the bottle sitting in their shower, we should also be prepared for them to question the bar replacing it.
What’s in it?
Why is it there?
What does it do?
Who might it suit?
Those are fair questions.
And they’re exactly the questions I want Cooper Delivered to help people ask.
Continue learning inside Hair Lab
Read the formula. Understand the job.
Oily hair doesn’t need another miracle ingredient.
It needs a cleansing routine that makes sense.
Understand the surfactants.
Look at the complete formula.
Treat your scalp and your lengths according to what they actually need.
And don’t let a pretty front label do all the talking.
Better haircare begins with better understanding.
Make It Ritual.