Are you looking for a shampoo that detoxifies without damaging your color-treated and low porosity hair?
Finding the proper hair care products can be super daunting, especially if you happen to have color-treated and low porosity hair like most of us do. With so many choices out there, it’s important to pick a shampoo that cleanses as well as nourishes and protects your hair. K18 Peptide Prep Detox Shampoo has made waves with its unique formula formulated to detox hair without compromising its integrity.
This shampoo works especially well for low porosity hair, which tends to be harder to penetrate with moisture and nutrients. Not sure about your porosity? Getting a grasp of it can be super helpful when choosing the right products. In this K18 hair care review, we’ll get into the distinct features of this one-of-a-kind hair treatment, including the key ingredients what the product claims to do and whether or not it lives up to the hype. If you’re in the market for a peptide shampoo for color-treated hair, this might be the one for you.
All while its pH-balanced hair detox powers help keep hair in check as well. Billions of Hairs is an intensive 3-in-1 bond repair shampoo that cleans your hair while also promising to strengthen and rejuvenate it.
Did You Know?
Hair with low porosity has cuticles that are tightly packed and closed so it is hard for moisture and treatments to be absorbed by the hair. Harsh shampoos can result in product build-up and cause color to appear dull. That’s the reason why products such as the K18 Prep Detox Shampoo that rigorously clean but also keep color intact are such a game changer.
At a Glance: What You Need to Know
Feature | Description |
---|---|
Type | Clarifying Shampoo |
Color-Safe | Yes |
pH Level | pH-balanced (4.5-5.5) |
Key Ingredients | Peptides, Aloe Vera, and Coconut Oil |
Sulfate-Free | Yes |
Cruelty-Free | Yes |
Suitable for | All hair types, but especially color-treated and low porosity hair |
Fragrance | Light, pleasant scent |
A Closer Look: K18 Peptide Prep Detox Shampoo

The K18 Peptide Prep Detox Shampoo is a purifying shampoo that helps to lift buildup from hair and scalp. Here’s an explanation of what it is and what people are saying about it:
- A non-stripping, color-safe shampoo.
- With activated charcoal to soak up toxins, oils and pollutants.
- Contains salicylic acid to remove excess oils within follicles, without stripping the skin.
- pH balanced (3.8-4.2) to maintain hair and scalp balance and color and moisture balance.
- For occasional deep cleaning (once a week or when warranted).
- Designed to prep the hair for best results from K18 Molecular Repair Leave-in Treatment.
- Promises to clear away 99 percent of product buildup, 95 percent of sebum and 76 percent of copper after one wash.
Looking to detox your hair the right way? Tap here to shop K18 Peptide Prep Detox Shampoo.
Key Ingredients and Their Functions
What makes any shampoo effective is its ingredients. Here’s a breakdown of the key ingredients in the K18 Peptide Prep Detox Shampoo and how they deliver for color-treated and low porosity hair:
- Peptides: These are the actives in this shampoo. Sounds familiar, well, these are ingredients that not only give you a temporary fix but actually help to strengthen and repair the hair giving it a much more resilient structure against things that could potentially damage it.
- Hydrates Scalps and Locks: Aloe vera acts as a soothing agent to hydrate the scalp and strands, alleviating irritation and creating a healthier environment for growing hair. This is especially helpful if your hair tends to feel dry and flaky, as is the case with low porosity hair.
- Coconut Oil: This natural oil is an amazing moisturizer which retains the moisture, making your hair soft and lesser in tangles. It’s lightweight enough that it won’t bog down low porosity hair while making sure that color-treated strands stay vivid and healthy.
- Sodium Cocoyl Isethionate: It is a gentle surface active agent that effectively cleans hair without removing its natural oils. This comes in particularly handy for low porosity hair, which can quickly dry out and become crunchy if stripped of its natural oils by a harsh cleansing agent.
First Look: My Thoughts on the Packaging
The bottle feels quite cool to the touch as soon as you pick it up. The packaging is contemporary, being a clear baby pink colour with clean white printed lettering. The flip cap is easy to open, requiring about two fingers to squeeze out the shampoo, which helps reduce spillage.
I love how narrow the bottle is, too — easy to travel with but still enough product for multiple uses. It feels premium and yet practical; no gimmicks.
Who Should Try this shampoo?
The K18 Peptide Prep Detox Shampoo is great for people who:
- Has color-treated hair and desires to keep it looking fresh.
- On the struggle bus with product buildup, and needs a gentle but effective clarifying shampoo.
- Requires lightweight, hydrating products and has low porosity hair.
- Searching for a bond repair shampoo that nourishes you as you cleanse.
- It’s the way that hair detox solution should be pH-balanced, so that there’s no compromise in hair health.
How I Use It for Best Results

Here is a step-by-step guide for using the shampoo:
- For best results use the K18 Peptide Prep Detox Shampoo as your cleansing step prior to any repair or conditioning treatments.
- Massage gently to lift away buildup, then rinse clean and condition.
- The shampoo is gentle enough for weekly use, or whenever hair feels weighed down.
Pair It With
Use the K18 Peptide Prep Detox Shampoo in conjunction with the K18 Leave-In Molecular Repair Hair Mask. Towel-dry hair after shampooing, apply the mask at the midpoint to the ends of hair, and leave on for 4 minutes, for an ultimate repair and replenishment.
User Reviews: What People Are Saying
Lots of people comment that their hair feels significantly fresher and lighter after using this shampoo and doesn’t suffer that stripped feeling so many detox washes give. Color holds better, and hair also appears and feels more receptive to treatments. Low porosity hair types love that it doesn’t leave a residue that weighs down or causes build up either.
A few have pointed to the mild, appealing scent and the oh-soothed sensation they get on (around?) their scalp, meaning it can’t possibly be too harsh even though it’s detoxing, damn it.
Editor’s Note: My Skin Type & Experience
My hair is low porosity, fine, and color-treated with bright balayage highlights. It has been tough for me to find a detox shampoo that doesn’t strip my color, or make my hair feel like straw. A few uses of K18 Peptide Prep Detox Shampoo later, and my hair feels truly cleansed, yet also inexplicably: soft, and my color vibrancy has held up great. I use the K18 treatment religiously and it works wonders for my hair strength and ability to manage it.
How It Stacks Up Against Other Shampoos
To give you context, I compared the K18 Peptide Prep Detox Shampoo to two other popular detox shampoos that are often suggested for low porosity, color-treated hair:
Feature | K18 Peptide Prep Detox Shampoo | ACURE Curiously Clarifying Shampoo | Ouai Detox Shampoo |
---|---|---|---|
Price | Mid to premium | Affordable | Premium |
Key Ingredients | K18Peptide™, gentle surfactants, aloe vera | Natural ingredients, gentle cleansers | Charcoal, gentle surfactants |
Color-Safe | Yes | Yes, but may dull color over time | Yes, but contains silicones |
Sulfate-Free | Yes | Yes | Yes |
Silicone-Free | Yes | Yes | No |
Fragrance | Subtle floral | Natural scent | Stronger fragrance |
Best For | Low porosity, color-treated hair | All hair types needing detox | All hair types, especially oily |
Detox Efficacy | High | Moderate | High |
Moisture Retention | High | Moderate | Moderate |
Mini Shampoo Face-Off
K18 is unique with the trademarked peptide complex and extraordinary color safe, gentle cleansing. It’s more expensive than ACURE but free of harsh surfactants and features prep benefits. Versus Ouai, K18 plays more toward detox efficacy on colour-treated, low porosity hair and is sans silicones.
Pros and Cons
Pros
- Great for color-treated hair
- Hair feels soft and nourished
- Perfect for low porosity locks that need a little love
- Very light and refreshing scent
- It is cruelty-free
Cons
- Expensive than normal shampoo
- Not widely available
Final Thoughts: Is It Worth Adding to Your Routine?
Having tested the k18 peptide prep detox shampoo extensively, I can report that this product delivers on its promises: It’s a standout for anyone with color-treated, low porosity hair. It detoxes but is mild enough to keep your hair color intact. When it comes to hair care, this becomes a favorite as it is a combination of peptides and nourishing agents.
Overall, if you are someone who is serious about keeping your hair healthy and vibrant, the K18 Peptide Prep Detox Shampoo is well worth investing in! Its unique formulation and effective cleansing properties, makes it a top choice in the hair care world, particularly for color-treated, low porosity hair.
So, what are you waiting for? So, give it a shot and tell us what you think! If you found this review helpful, please consider sharing on social media. Your friends may be searching for the perfect shampoo too!
FAQs
Is K18 Peptide Prep Detox Shampoo safe for all kinds of hair?
This shampoo is good for all hair types, particularly color-treated and low porosity hair. The gentle formula cleanses without stripping moisture.
Is it possible to apply K18 Peptide Prep Detox Shampoo after using other hair care products?
Absolutely! Regular conditioner and styling products can be used with this shampoo. Just be sure to follow up with a good conditioner to keep hydrated.
Is this shampoo suitable for my low porosity hair?
Yes! To cleanse without stripping moisture, it’ll be great for low porosity hair that tends to repel moisture with its compact cuticle layer—the K18 Peptide Prep Detox Shampoo is lightweight and hydrating.