Revlon Colorsilk #04 Ultra Light Natural Blonde – Permanent Hair Dye, Ammonia Free

Permanent hair color from Revlon Colorsilk in shade 04 Ultra Light Natural Blonde delivers luminous, natural-looking blonde with 100% gray coverage — all without ammonia. Enriched with UV Defense to keep color vibrant, dimensional, and true between applications, plus Keratin and Amino Acids to leave hair in better condition after coloring than before. One kit, complete at-home results.

Ammonia-Free Permanent Hair Color with UV Defense & Keratin

Revlon Colorsilk uses 3D Color Technology™ to deliver natural-looking, multi-tonal color from root to tip. Unlike flat, one-dimensional color, 3D Color Technology boosts your hair color while adding definition and dimensionality — the kind of depth and movement that makes blonde hair look genuinely natural rather than box-colored. Shade 04 Ultra Light Natural Blonde delivers the lightest, most natural-toned blonde in the Colorsilk range — bright and luminous without the icy coolness of ash shades, with warm neutral undertones that complement a wide range of skin tones.

UV Defense is built into this formula to protect your color from sun-induced fading and brassiness. UV rays are one of the primary causes of color degradation in blonde hair — UV Defense helps shield the color pigments from UV damage, keeping your shade vibrant, dimensional, and true for longer between applications. For anyone who spends time outdoors, this is a meaningful advantage over standard permanent color formulas.

Keratin and Amino Acids work together during the coloring process to strengthen, smooth, and nourish the hair shaft. Keratin — the same protein that makes up your hair — reinforces the hair structure from within. Amino Acids provide the building blocks for healthy hair, improving texture, manageability, and shine. The result is hair that feels healthier after coloring than before — that’s the Colorsilk promise.

Each kit includes: ammonia-free colorant, cream color developer, after-color conditioner, application instructions, and gloves — everything needed for a complete at-home application.

Explore more hair care and beauty essentials in our Beauty collection. For more on choosing the right permanent hair color shade, visit Revlon’s official hair color guide.

Key Features

• UV Defense — Vibrant, True Color Between Applications: Built-in UV protection shields color pigments from sun-induced fading and brassiness. Keeps shade 04 Ultra Light Natural Blonde vibrant, dimensional, and true for longer. Ideal for those who spend time outdoors.
• Ammonia-Free Formula — Gentler Color, No Harsh Fumes: Permanent color without ammonia. Gentler on hair and scalp than traditional dyes, with no strong chemical odor during application. Salon-quality results without the compromise.
• 100% Gray Coverage — Root to Tip: Complete, even gray coverage from root to tip in a single application. 3D Color Technology ensures consistent, uniform color with no patchiness or missed grays.
• Keratin & Amino Acids — Hair in Better Condition After: Keratin strengthens and smooths the hair shaft. Amino Acids nourish and improve texture and manageability. Hair feels healthier, shinier, and softer after coloring than before.
• Shade 04 Ultra Light Natural Blonde — Brightest Natural Blonde: The lightest natural-toned blonde in the Colorsilk range. Warm neutral undertones — bright and luminous without the coolness of ash shades. Flatters a wide range of skin tones.
• Complete Kit — Everything Included: Ammonia-free colorant, cream color developer, after-color conditioner, application instructions, and gloves. Everything needed for a complete, professional-quality at-home application.

Frequently Asked Questions

Will Revlon Colorsilk 04 Ultra Light Natural Blonde lighten my naturally dark hair?
Revlon Colorsilk 04 Ultra Light Natural Blonde is a permanent color, not a lightener or bleach. It will not lift or lighten hair that is naturally darker than the target shade. This shade is designed for naturally very light blonde or previously lightened hair. On naturally dark hair, the result will be significantly darker than the shade shown on the box. For best results, perform a strand test 48 hours before full application to preview the result on your specific hair color.

What is the difference between shade 04 Ultra Light Natural Blonde and Ultra Light Ash Blonde?
Shade 04 Ultra Light Natural Blonde has warm neutral undertones — it is bright and luminous without pulling cool or icy. Ultra Light Ash Blonde has cool ash undertones (blue and violet pigments) that actively neutralize brassiness and deliver a cooler, more platinum-adjacent result. If you want a warm, natural-looking ultra light blonde, choose 04. If you want a cool, brass-free icy blonde, choose Ultra Light Ash Blonde.

Does Revlon Colorsilk 04 Ultra Light Natural Blonde require a developer or mixing?
Yes. Revlon Colorsilk is a two-component system — the ammonia-free colorant and the cream color developer are mixed together before application. Everything needed for a single application is included in the kit: colorant, developer, after-color conditioner, application instructions, and gloves. Follow the included instructions carefully for best results and even coverage from root to tip.