Why Is My Candle Color Fading or Changing?
You spent time perfecting the shade of your candle, only to check back later and notice the color has shifted or faded almost completely, without intending to make a color changing candle! Whether your candles are meant for personal use or retail, color changes can affect the overall look and feel of your product. So why does this candle wax discoloration happen?
Candle color fading or discoloration is typically the result of environmental exposure, ingredient interaction, or the natural aging of materials. Here’s how to understand it, prevent it, and know when it signals something more.
For long-lasting color and performance, start with high-quality materials and proper storage practices. Explore our full Candle Dyes Collection and try a tested shade like Red Liquid Candle Dye for reliable color control from batch to batch.
Why Does Candle Wax Change Color Over Time?
Candle color doesn’t just fade without a cause. Most of the time, changes are linked to how the candle was formulated and stored. Both natural and synthetic dyes can shift in appearance under certain conditions.
UV Light, Fragrance, and Additive Reactions
Ultraviolet (UV) exposure is one of the most common causes of fading. When candles sit in direct sunlight or strong artificial lighting, dyes can break down or become unstable. Even if the wax looks fine at first, you may notice fading or yellowing after a few days or weeks.
Some fragrance oils, especially those with vanilla or citrus compounds, can also interact with certain dyes and cause discoloration or patchiness. The presence of UV inhibitors, stabilizers, or certain wax additives may help in some cases, but results vary depending on the wax type and formulation.
Color Shifts in Natural vs. Dyed Candles
Natural waxes like soy or beeswax often have a slight tint of their own. This can affect how the final candle color looks, especially with lighter shades. Over time, that natural wax tone may deepen, which makes pastels or delicate hues appear uneven or washed out.
Pigment-based dyes tend to hold up longer than liquid dyes but may still be affected by fragrance or oxidation.
How to Make Candles Last Longer
Even if your candles are beautifully colored today, poor storage can reduce how long that color holds. Here are some notes for improving candle care.
Storage Tips for Finished Candles
- Store candles in a cool, dark area away from direct sunlight
- Avoid placing finished candles near heat vents, windows, or warm storage rooms
- Use airtight or UV-protective packaging for long-term shelf life
- Keep candles away from high-humidity environments that may accelerate degradation
If you're producing in bulk, clear labeling and rotation schedules can also help keep your inventory looking its best.
Does Candle Wax Expire or Go Bad?
Candle wax does not expire in the same way food does, but it can degrade over time, especially when exposed to oxygen, UV light, or high temperatures. This affects not only fragrance throw and burn quality but also the appearance of the wax.
Signs of Aging in Wax and Colorants
- Fading or yellowing of originally vibrant colors
- Uneven coloration or mottling in dyed candles
- A sour or off smell in the wax itself
- Brittleness, cracking, or frosting, especially in soy wax
These signs do not always mean the candle is unsafe to burn, but they may suggest that the materials are past their best quality.
Frequently Asked Questions
Q: How do I color candles without fading?
A: Use high-quality dyes that are compatible with your wax type. Avoid overexposure to light and heat during curing and storage.
Q: What’s the best way to dye candle wax?
A: Liquid dyes work well for consistent color, while dye blocks offer more control in smaller batches. Always test your exact wax and fragrance combination to monitor for color stability.
Q: Do candles go bad over time?
A: Not in the traditional sense, but both wax and colorants can lose performance if stored improperly. Keep materials in a cool, dry, and dark space to extend shelf life.