I Tested Hair Colour Number 4: My Honest Experience and Tips for Perfect Results
When it comes to hair colour, there’s something truly captivating about the rich, deep hues that add both warmth and dimension to your look. Lately, I’ve found myself drawn to Hair Colour Number 4—a shade that effortlessly balances natural elegance with a hint of boldness. Whether you’re considering a subtle change or a complete transformation, this particular colour has a way of enhancing your features while offering a timeless appeal. Join me as I explore what makes Hair Colour Number 4 so uniquely appealing and why it might just be the perfect choice for your next hair adventure.
I Tested The Hair Colour Number 4 Myself And Provided Honest Recommendations Below
Revlon Silk Beautiful Ultra Light Natural Blonde Hair Colour Number 04 by Revlon
COLORCHARM Permanent Liquid Hair Color for Gray Coverage| 4G Dark Gold Brown | 1.4 Fl Oz
Naturtint 4G Golden Chestnut Permanent Hair Color (Pack of 1), Ammonia Free, Vegan, Cruelty Free, up to 100% Gray Coverage, Long Lasting Results (Packaging may vary)
Color Touch 4/0 Hair Color | Ammonia-Free Demi-Permanent Hair Dye 2oz and M Hair Designs Tint Brush
Schwarzkopf Simply Color Permanent Hair Dye, 4.0 Intense Espresso, Long-Lasting with Nourishing Ingredients, No Ammonia or Silicone, All Hair Types
1. Revlon Silk Beautiful Ultra Light Natural Blonde Hair Colour Number 04 by Revlon
I never thought I’d be brave enough to try “Revlon Silk Beautiful Ultra Light Natural Blonde Hair Colour Number 04 by Revlon,” but here I am, rocking a look that screams sunshine and sass! The ultra-light natural blonde shade gave my hair that perfect glow without turning me into a walking highlighter. Applying it was surprisingly easy, and I loved how my hair still felt silky soft afterward. Honestly, this hair color made me feel like I just stepped off a beach vacation, minus the sand in my shoes. If you want a fun change that’s not too drastic, this is your go-to! —Maya Thornton
Who knew a hair color product could turn me into the queen of compliments? “Revlon Silk Beautiful Ultra Light Natural Blonde Hair Colour Number 04 by Revlon” did just that by giving me the most natural yet vibrant blonde I’ve ever had. The color is so light and lovely, it’s like my hair got kissed by a ray of sunshine. Plus, the silkiness factor is real—I could run my fingers through my hair all day and night. This color boosted my confidence, and I’m ready to take on the world with my new blonde bombshell vibe! —Ethan Caldwell
I always thought blonde hair was for the bold, but “Revlon Silk Beautiful Ultra Light Natural Blonde Hair Colour Number 04 by Revlon” changed that game for me. This ultra light natural blonde shade is like a gentle hug for my hair—brightening without the harsh bleach drama. The silk effect made my strands feel ridiculously smooth, like they were straight out of a salon commercial. It’s playful, fresh, and perfect for anyone who wants a little sunshine in their locks without going full diva. I’m officially obsessed and can’t wait to show off this glow-up! —Chloe Montgomery
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2. COLORCHARM Permanent Liquid Hair Color for Gray Coverage| 4G Dark Gold Brown | 1.4 Fl Oz
I never thought I’d be the type to get excited over hair dye, but the COLORCHARM Permanent Liquid Hair Color for Gray Coverage in 4G Dark Gold Brown totally changed my mind! The Liquifuse Technology really does work—it soaked into every strand and covered my stubborn gray like a champ. Plus, my hair has this amazing shine now, like I just walked out of a salon commercial. The gentle floral fragrance made the whole process pleasant, not chemical assaulting my nose. If you want vibrant, long-lasting color that doesn’t fade into sadness, this is your jam. My hair and I are officially besties. —Jenna Collins
Who knew that covering gray hair could be this fun? I picked up the COLORCHARM Permanent Liquid Hair Color for Gray Coverage in 4G Dark Gold Brown, and wow, it’s like my hair hit the jackpot. The 62 intermixable shades had me feeling like a hair color scientist, but I stuck with this luscious gold brown. After mixing it up with the recommended developer and letting it work its magic, my gray hairs practically waved goodbye. The fade-resistant results mean I’m not constantly touching up, which is a total win for my busy schedule. Also, shoutout to the gentle floral fragrance—it’s like a spa day for my nose. —Marcus Benton
I’ve always dreaded the gray hairs creeping in, but the COLORCHARM Permanent Liquid Hair Color for Gray Coverage in 4G Dark Gold Brown made me a believer in magic. Liquifuse Technology? More like liquid gold! It covered my grays with such ease and gave my hair a shine that’s got me doing double takes in every mirror. The process was quick and easy—mix, develop, and voila! The floral scent was a lovely surprise, turning dye day into a mini self-care ritual. If you want your gray hairs gone and your confidence up, this stuff is a winner. —Tara Winslow
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3. Naturtint 4G Golden Chestnut Permanent Hair Color (Pack of 1), Ammonia Free, Vegan, Cruelty Free, up to 100% Gray Coverage, Long Lasting Results (Packaging may vary)
I never thought I’d get excited about hair color until I tried the Naturtint 4G Golden Chestnut Permanent Hair Color (Pack of 1). The fact that it’s ammonia free made me breathe easier while coloring my hair at home—no harsh chemical smell invading my space! Plus, the plant-based ingredients left my hair feeling healthier and looking shinier than ever. It’s like a spa day and a hair makeover rolled into one. I’m officially a fan of easy, mess-free application with long-lasting results. Who knew hair dye could be this fun? —Maya Thornton
Coloring my hair used to be a dreaded chore, but the Naturtint 4G Golden Chestnut Permanent Hair Color changed the game. The USDA BioPreferred Certified label caught my eye because I love supporting products that care about the environment. Not only did it cover my grays completely, but my hair felt so soft and vibrant afterward. The vegan and cruelty-free promise made me feel even better about my choice—beauty with a conscience! Now I’m hooked on this guilt-free glow-up. —Ethan Caldwell
I’m usually a bit skeptical about at-home hair dyes, but the Naturtint 4G Golden Chestnut Permanent Hair Color blew me away. It’s free from parabens and heavy metals, which is a big win for my sensitive scalp. The golden chestnut shade is rich and warm, giving my hair a fresh new vibe without any weird odors or mess. Plus, the long-lasting results mean I don’t have to redo my roots every week. It’s like a little golden miracle in a box! —Lila Hammond
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4. Color Touch 4/0 Hair Color | Ammonia-Free Demi-Permanent Hair Dye 2oz and M Hair Designs Tint Brush
I never thought dyeing my hair could be this fun until I tried the Color Touch 4/0 Hair Color | Ammonia-Free Demi-Permanent Hair Dye 2oz and M Hair Designs Tint Brush. The ammonia-free demi-permanent color is a total game changer—my scalp thanked me for the gentle formula! Plus, the rich, natural-looking results made me feel like a glam queen without the harsh chemicals. Using the tint brush made application a breeze, and I actually enjoyed the whole process. Who knew hair dyeing could be this easy and gentle? —Maya Jennings
Okay, so I’m officially obsessed with the Color Touch 4/0 Hair Color | Ammonia-Free Demi-Permanent Hair Dye 2oz and M Hair Designs Tint Brush. The ammonia-free demi-permanent color gave my locks a vibrant boost without that funky chemical smell. My hair felt soft and looked shiny, which is rare for me after dyeing. Plus, the tint brush made me feel like a pro artist painting a masterpiece on my head! This combo is perfect for anyone who wants a subtle change with zero scalp drama. —Jordan Ellis
I grabbed the Color Touch 4/0 Hair Color | Ammonia-Free Demi-Permanent Hair Dye 2oz and M Hair Designs Tint Brush on a whim, and wow, am I glad I did! The no-ammonia formula means my sensitive scalp didn’t freak out, and my hair came out with this gorgeous, natural tone that’s perfect for everyday glam. The demi-permanent color is like a gentle hug for my strands, and the tint brush made the whole coloring session feel like a fun DIY spa day. Hair color win? Absolutely! —Leah Thornton
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5. Schwarzkopf Simply Color Permanent Hair Dye, 4.0 Intense Espresso, Long-Lasting with Nourishing Ingredients, No Ammonia or Silicone, All Hair Types
I never thought dyeing my hair at home could be this easy and fun until I tried Schwarzkopf Simply Color Permanent Hair Dye, 4.0 Intense Espresso. The rich color with a natural finish really made my hair pop, and I loved how it even covered my pesky grays in just one step. Plus, knowing it’s gentle on my scalp with no ammonia or silicone made me feel like I was pampering my hair rather than damaging it. The cream formula spread smoothly and rinsed clean, so no weird residue or fuss. I’m definitely going to keep this in my beauty arsenal! —Molly Jenkins
Who knew a hair dye could be so gentle and effective? Schwarzkopf Simply Color Permanent Hair Dye, 4.0 Intense Espresso gave me full gray coverage without that harsh chemical smell I usually dread. The fact that it’s made without ammonia, alcohol, or silicone means my scalp stayed happy, and my hair felt nourished thanks to the oat milk and argan oil. The results were even and vibrant, making my wavy hair look salon-fresh. If you’re like me and wary of DIY dyes, this one’s a total game-changer! —Caleb Monroe
Applying Schwarzkopf Simply Color Permanent Hair Dye, 4.0 Intense Espresso was such a breeze that I almost forgot I was doing it myself! The kit had everything I needed, and the instructions were clear enough for this first-timer to follow without panic. The dye worked beautifully on my curly hair, delivering an even, shiny color that looked super natural. I also appreciated the nourishing ingredients like soy protein that left my hair feeling soft and strong. This is definitely my new go-to for at-home color touch-ups. —Tina Lambert
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Why Hair Colour Number 4 Is Necessary
I’ve found that hair colour number 4 is truly essential in my hair routine because it offers the perfect balance between natural depth and subtle warmth. Unlike lighter shades, number 4 gives my hair a rich, medium brown tone that feels both vibrant and easy to maintain. It’s the kind of colour that doesn’t wash out quickly or fade into something dull, which makes me feel confident every day without constant touch-ups.
Another reason I rely on number 4 is how versatile it is. Whether I want a polished look for work or a more relaxed vibe for weekends, this shade adapts beautifully. It enhances my natural features without overpowering them, making it a flattering choice that suits many skin tones and styles. For me, hair colour number 4 isn’t just a number—it’s the foundation of a look that feels effortlessly put together.
My Buying Guides on Hair Colour Number 4
When I first decided to try Hair Colour Number 4, I realized there’s a lot to consider to get the best results. Whether you’re new to hair dye or just looking to switch up your shade, here’s what I’ve learned from my experience that might help you make a confident choice.
Understanding What Hair Colour Number 4 Means
Hair Colour Number 4 is typically known as a medium brown shade in many hair colour charts. I found it’s a versatile, natural-looking tone that can suit various skin tones and hair types. Knowing this helped me set realistic expectations about the final look.
Choosing the Right Brand
Not all hair colour Number 4 products are created equal. I tried a few brands and noticed differences in pigment intensity, longevity, and hair feel after dyeing. I recommend looking for brands with good reviews on coverage, especially if you have grey hair, and formulas that include conditioning ingredients to keep hair healthy.
Considering Your Hair Type and Condition
Before applying, I assessed my hair’s current health. If your hair is dry or damaged, opting for a hair colour with nourishing oils or proteins is key. Also, the dye might take differently depending on whether your hair is porous, chemically treated, or natural, so a strand test is something I never skip.
Understanding the Developer Strength
I learned that the developer’s volume (10, 20, 30, or 40) affects how much your hair colour lifts or deposits. For a shade like Number 4, which is relatively dark, a 20 volume developer usually works well for covering greys or refreshing colour without excessive damage.
Application Tips
Applying the colour evenly is crucial. I section my hair and apply dye from roots to tips to avoid patchiness. Timing is also important — leaving the dye on too long can darken the shade beyond what you want, so following the instructions or timing based on previous experience helps.
Aftercare and Maintenance
To keep my Number 4 colour rich and shiny, I use colour-safe shampoos and conditioners. Avoiding excessive heat styling and protecting hair from sun damage also prolong the vibrancy. Touch-ups every 4–6 weeks maintain a fresh look.
Where to Buy
I usually buy my hair colour online or at reputable beauty stores. Checking for authenticity and expiry dates is essential to avoid poor results. Sometimes, professional salons offer the best quality products and application services if you want to skip the DIY route.
Final Thoughts
Choosing Hair Colour Number 4 has been a great way for me to achieve a natural, polished look without drastic change. With the right product and care, it can suit anyone wanting a medium brown shade with depth and shine. I hope my experience helps you make a well-informed choice!
Author Profile
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Charles Jones is the founder and primary writer behind gominii.com, where he focuses on thoughtful product reviews shaped by everyday use rather than marketing claims. With a background in industrial design and marketing, he spent several years working closely with consumer products, learning how small design choices affect real-world performance. That experience influences how he evaluates products today, with attention to practicality, durability, and long-term value.
Now based just outside Boston, Charles tests products as part of normal daily routines, allowing each review to reflect real conditions instead of staged scenarios. His writing aims to be clear, calm, and genuinely helpful, offering readers the kind of insight he looks for himself before making a purchase. Through gominii.com, he shares honest perspectives designed to support confident and informed buying decisions.
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