Ingredient review
HC Red No. 14
INCI: HC RED NO. 14
HC Red No. 14 is a synthetic dye used in hair color products; it is generally considered safe for use on hair but may cause irritation for sensitive scalps.
In plain English
HC Red No. 14 is a man-made color molecule that sticks to hair proteins to deposit a red shade. It is not used in skincare, only in hair dyes. Because it is a dye, it can sometimes cause allergic reactions or irritation, especially if you have a sensitive scalp or a history of reactions to hair color.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Main practical flags: irritation is moderate; clogging risk is low.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- moderate
- Clogging risk
- low
Quick decision guide
Useful, but context matters
HC Red No. 14 can be useful, but watch for some irritation potential.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging HC Red No. 14.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
moderateCan bother some users, especially with frequent use, damaged skin, or strong companion ingredients.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
HC Red No. 14 is a synthetic organic compound classified as a nitro dye. It is specifically designed to color hair by binding to the hair shaft.
How it works
In a hair dye formula, HC Red No. 14 penetrates the outer layer of the hair (cuticle) and deposits color. It works best in combination with other dyes to achieve a desired shade, and its color can last through several washes depending on the formulation.
Pros
Effective red colorant
HC Red No. 14 delivers a stable red hue that can be blended with other dyes for custom shades.
Widely regulated
Approved for use in hair dyes in many regions, including the EU and US, with concentration limits to reduce risk.
Cons and cautions
Allergy risk
Like many hair dyes, HC Red No. 14 can cause allergic reactions, so a patch test is recommended before use.
Not for skincare
This ingredient is strictly for hair use and should not be applied to skin or used in leave-on products.
Best for
- People looking for red hair color options
- Those without known allergies to hair dyes
Use caution if
- Individuals with a history of allergic reactions to hair dyes
- People with sensitive or damaged scalps
Usage tips
Safety summary
HC Red No. 14 is considered safe for use in hair dyes at regulated concentrations, but it carries a moderate risk of skin irritation and allergic reactions, especially for sensitive individuals.
Research notes
Studies indicate that HC Red No. 14 has low acute toxicity and is not a skin sensitizer in most people, but patch testing is still advised due to individual variability.
Common label clues
- Typical concentration
- Up to 1.5% in rinse-off hair products
- Regulatory status
- Approved for use in hair dyes in the EU (CosIng database) and by the US FDA as a color additive for hair, with concentration limits typically up to 1.5%.
- Common uses
- Hair dyes and colors
- Environmental note
- Synthetic dyes can persist in wastewater; proper disposal of hair dye products is recommended to reduce environmental impact.
Good to know
- HC Red No. 14 is often listed alongside other HC dyes in ingredient labels.
- It is not used in skincare or cosmetics applied to the skin.
Common questions
What is HC Red No. 14 in beauty products?
HC Red No. 14 is a man-made color molecule that sticks to hair proteins to deposit a red shade. It is not used in skincare, only in hair dyes. Because it is a dye, it can sometimes cause allergic reactions or irritation, especially if you have a sensitive scalp or a history of reactions to hair color.
What does HC Red No. 14 do in a beauty product?
In a hair dye formula, HC Red No. 14 penetrates the outer layer of the hair (cuticle) and deposits color. It works best in combination with other dyes to achieve a desired shade, and its color can last through several washes depending on the formulation.
Is HC Red No. 14 safe for most people?
HC Red No. 14 is considered safe for use in hair dyes at regulated concentrations, but it carries a moderate risk of skin irritation and allergic reactions, especially for sensitive individuals.
Who should be careful with HC Red No. 14?
Individuals with a history of allergic reactions to hair dyes People with sensitive or damaged scalps
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.