Titanium Anodization for Piercing - A Guide to Colors
Titanium anodization is a unique electrochemical process that creates colors on piercing jewelry without the use of paint, lacquer, or coating. This one-of-a-kind technology makes titanium an ideal material for implantable jewelry – hypoallergenic, durable, and safe for all types of piercings.
What is titanium anodization?
Titanium anodization is an electrochemical oxidation process of the metal surface, which creates an extremely thin, transparent layer of titanium oxide (TiO₂) on it. This layer is not paint or a coating applied - it grows directly from the metal and is inseparably bound to it. This is why anodized titanium is so unique and so safe for the human body.
The jewelry is immersed in an electrolytic solution and connected to direct current. Titanium becomes the anode - hence the name of the process. Oxygen reacts with the metal surface, forming a TiO₂ layer.
The color does not come from dye. The oxide layer acts as an interference filter - refracting and reflecting light at different wavelengths. This is the same effect as in butterfly wings or a soap bubble.
The layer thickness ranges from 10 to 150 nanometers. This is less than a thousand times thinner than a human hair. Despite this, it is a hard, sealed protective barrier.
Titanium oxide TiO₂ is fully biocompatible and used in medical implants, dental implants, and orthopedic surgery. The body does not react to it with inflammation.
Paint and lacquer are external coatings that can peel, chip, and penetrate tissue during piercing healing. Anodization creates a layer within the metal - it is an integral part of it. It cannot be scraped off, does not come into contact with the bloodstream, and does not cause allergic reactions.
How Voltage Creates Color - The Physics of Anodization
Each anodization color is the result of precisely selected electrical current voltage. The higher the voltage, the thicker the oxide layer - and the thicker the layer, the different the wavelength of light that is enhanced by interference. This is pure optics physics.
Surface preparation
The jewelry is thoroughly cleaned and degreased. Any imperfections on the surface would affect the uniformity of the color. Metal cleanliness is key.
Immersion in electrolyte
Titanium is immersed in a solution - most often phosphate or sulfuric. The solution conducts current and supplies oxygen ions for reaction with the metal.
Voltage application
Direct current with precisely set voltage (from 12V to over 100V) causes oxidation of the titanium surface. The voltage determines the thickness of the TiO₂ layer.
Light interference
An oxide layer of a specific thickness enhances a specific wavelength of light. Effect: the eye perceives a pure, saturated color without any dye.
Finished color
The process takes seconds. The finished jewelry has a durable, hard, scratch-resistant coating that will not fade, flake, or disappear over time.
Anodized titanium exhibits an iridescent effect - the color may change slightly depending on the viewing angle and type of lighting. This is a natural property of light interference on a thin oxide layer and is a sign of authentic anodization. This effect is impossible to achieve with paint or lacquer.
26 colors of titanium anodization
Each shade is obtained by precise electrical current voltage. Colors may differ slightly depending on lighting and viewing angle - this is a natural property of titanium anodization, not a defect.
Titanium Anodization Color and Voltage Chart
Full specification of 26 colors available in our offer. Voltages are approximate - the final shade depends on electrolyte concentration, temperature, and titanium batch.
| No. | Color | Voltage | Shade description |
|---|---|---|---|
| 01 | Light brown | 12V | Warm, delicate brown-golden shade |
| 02 | Dark brown | 15V | Deep, saturated brown |
| 03 | Deep purple | 18V | Dark purple with a hint of navy |
| 04 | Dark violet | 20V | Deep violet close to plum |
| 05 | Violet | 22V | Classic, vibrant violet |
| 06 | Dark blue | 25V | Navy blue, deep |
| 07 | Blue | 28V | Full, classic blue |
| 08 | Medium blue | 30V | Blue with a steel sheen |
| 09 | Sky blue | 33V | Bright, fresh blue |
| 10 | Light blue | 36V | Delicate, pastel blue |
| 11 | Ice blue | 40V | Very light, almost white blue |
| 12 | Silver blue | 42V | Cool, metallic blue |
| 13 | Pale yellow | 48V | Delicate, tea-like yellow |
| 14 | Light yellow | 55V | Warm, sunny yellow |
| 15 | Yellow | 60-63V | Intense, saturated yellow |
| 16 | Gold | 65V | Warm gold with a metallic sheen |
| 17 | Rose gold | 70V | Elegant gold with a pink tone |
| 18 | Light pink | 72V | Delicate, pastel pink |
| 19 | Pink | 75V | Classic, vibrant pink |
| 20 | Fuchsia | 80V | Intense pink-purple |
| 21 | Dark fuchsia | 85V | Deep, saturated fuchsia |
| 22 | Intense violet | 90V | Deep violet with a red reflection |
| 23 | Blurple | 92V | Violet with a distinct blue tone |
| 24 | Purple-teal | 95V | Transition from purple to teal |
| 25 | Teal green | 103V | Deep green with a turquoise reflection |
| 26 | Green | 105V | Saturated, deep green |
Titanium Anodization vs PVD Coating - Differences That Matter
Two of the most popular methods for coloring piercing jewelry. Although the visual effect may be similar, their operating principles and body safety are completely different. Here's why anodization is the superior choice in every respect.
- Color from within the metal - the TiO₂ layer grows directly from titanium, it is an integral part of it
- Zero dyes and chemical substances - no paint or lacquer comes into contact with tissue
- Durability for the entire life of the jewelry - the oxide layer cannot be scraped or rubbed off during normal use
- Full biocompatibility - TiO₂ used in medicine and implantology
- Hypoallergenic - safe for people with sensitive skin and nickel allergies
- Maintains color during healing - color does not disappear from body secretions or cleaning agents
- Natural shimmer in light - a subtle iridescent effect impossible to fake
- External applied coating - the metal is only the substrate, the layer is not atomically bound to it
- Risk of flaking and abrasion - over time and with intensive use, the coating can detach
- Dependent on the substrate - PVD on 316L surgical steel still contains nickel beneath the coating
- Coating thickness may vary - uneven coverage affects color durability
- More difficult to re-anodize - color cannot be easily changed without specialized equipment
- Standardly used on steel jewelry - less suitable for fresh piercings
For newly performed piercings, we always recommend jewelry made of ASTM F-136 implant-grade titanium with anodization. This is the only material where the color of the jewelry is 100% safe for healing tissue. PVD coatings, lacquers, and paints are not recommended by experienced piercers for fresh piercings.
The ASTM F-136 standard is an implant standard for Grade 23 titanium (Ti-6Al-4V ELI). This is the same grade used in hip prostheses and dental implants.
ASTM F-136 titanium is a certified implant material used in orthopedics, dentistry, and surgery. It offers the highest possible safety standard for piercing jewelry.
Unlike 316L surgical steel, implant-grade titanium does not contain nickel. Safe even for individuals with confirmed contact allergy to nickel.
Titanium is 56% lighter than steel with the same strength. Titanium jewelry will be much less noticeable during the day, especially for larger pieces.
The TiO₂ oxide layer has a hardness similar to Mohs scale minerals 6-7. The color is resistant to scratches, sweat, water, and daily wear.
How to care for anodized titanium jewelry?
Anodized titanium is one of the easiest jewelry materials to care for. The TiO₂ layer is resistant to most external factors, but a few rules will help maintain its color and shine for years.
Wash the jewelry with warm water and mild SLS-free soap. Avoid bleaches, acetone, and high-concentration alcohol - they can affect the surface's luster.
Anodized titanium is waterproof. You can swim with the jewelry, but chlorine in pools and sea salt can dull the surface with very prolonged exposure.
Store jewelry separately from other metals and hard stones that could scratch the surface. Fabric pouches or individual boxes are ideal.
Perfumes, hairsprays, and creams with acids can affect color intensity with direct and prolonged contact. Apply cosmetics before putting on jewelry.
The TiO₂ layer is hard but not indestructible. Avoid rubbing against rough surfaces and do not wear jewelry during physical activities where it may be exposed to strong impacts.
If you want to change the anodization color, contact a specialist. Re-anodization is possible - a new color can be applied or the previous one removed by polishing the metal.
During piercing healing, the jewelry comes into contact with body fluids (lymph, plasma). Titanium anodization is completely resistant to this - the color will not disappear, fade, or penetrate the tissue. This is a key advantage over jewelry with a dyed or lacquered surface.
Frequently Asked Questions about Titanium Anodization
Answers to the questions most frequently asked by people choosing anodized titanium piercing jewelry.
Will the color of anodized titanium fade over time?
- Deep mechanical scratches damaging the surface
- Prolonged contact with very aggressive chemical substances (strong acids, bases)
- Extreme temperatures (e.g., metal heat treatment)
Sweat, water, soap, piercing care products, and body secretions during healing do not affect the anodization color.
Is anodization safe for fresh piercings?
Why does anodized titanium shimmer in different colors depending on the light?
Can I choose a specific color for my jewelry?
- Individual properties of a given batch of titanium
- Calibration of anodizing equipment
- Lighting conditions when viewing the finished jewelry
What is the difference between anodized titanium and PVD coated titanium?
- Anodization: the oxide layer grows FROM the metal - it is part of it. No substances added from outside.
- PVD (Physical Vapor Deposition): an external coating of metal or compound is vacuum deposited ONTO the metal. It is a separate layer that can wear off.
In terms of safety for fresh piercings, titanium anodization is the method recommended by the APP (Association of Professional Piercers). PVD coatings on steel jewelry still have nickel-containing steel underneath.
Does anodization add thickness to the jewelry?
Why are not all titanium colors achievable?
Why choose anodized titanium for piercing?
Titanium anodization is the best available technology for coloring implant-grade jewelry. It combines aesthetics with the highest possible body safety.
ASTM F-136 titanium with anodization is recommended by APP (Association of Professional Piercers) as one of the two best materials for fresh piercings, alongside 14k+ gold.
Colored jewelry doesn't have to mean compromising safety. With anodization, you get a full palette of colors and the highest standard of biocompatibility in one.
The anodization color will not disappear, flake, or fade with normal use. You invest once and enjoy the color for the entire life of the jewelry.
Titanium anodization is a clean electrochemical process. It does not use paints, solvents, or harmful heavy metals. Minimal environmental footprint.
Our team will help you choose the right color and size of jewelry. Every product in our store made of anodized titanium meets ASTM F-136 implant standards and is safe for all types of piercings - fresh and healed.
