How Anodized Titanium Works: 18 Coating-Free Colors for Private Label Beauty Tools
A titanium gua sha board can carry a blue, gold or violet appearance without a coloured paint layer. For a skincare brand, that opens a useful design choice: the tool itself can contribute to the range's colour direction. The purchasing task is to turn that visual idea into a finish that both parties can identify and approve.
“Coating-free” needs a precise meaning here. It describes colour produced without added paint, coloured plating or lacquer. Anodizing still creates an oxide layer on the titanium surface. It does not leave the metal untouched or remove every surface layer. Clear language helps your team explain the finish without suggesting that the tool is bare metal or that its colour cannot be damaged.
The colour comes from the surface oxide
Titanium forms an oxide at its surface. Anodizing is an electrochemical process used to grow that oxide layer under controlled conditions. For colour anodizing, the resulting appearance comes from the way light interacts with the layer, rather than from a coloured pigment mixed into the titanium.
Light reflected at different boundaries of the thin oxide layer can interfere. Depending on the layer's thickness, some parts of the reflected visible light reinforce each other while others are reduced. The combination produces the colour you see. Nippon Steel's technical report on titanium oxide layers describes this connection between oxide thickness and interference colour.
The buyer does not need a voltage recipe to approve a finished tool. Thickness control explains why the process can produce different appearances, but a process setting is not a substitute for a physical colour reference. Specify the desired finish, review a sample and connect that approval to the exact tool in the order.
Why this differs from selecting paint
A printed colour chip describes a different surface and a different way of producing colour. A screen adds another interpretation. Neither tells you exactly how an anodized metal tool will look in your hand. Use digital references to explain the intended direction, then use the physical tool to make the final decision.
It is also useful to distinguish colour naming from colour acceptance. “Rose Gold” can identify a catalogue option without promising an exact match to a printed box, another metal product or a particular screen image. If your brand has a tightly defined palette, show the packaging reference and the actual anodized sample together before committing to the combination.
For a US or EU launch team, this review can prevent the packaging designer, buyer and supplier from working toward different visual targets. Agree which sample is the reference, how it is identified and who approves it. Keep that reference available when reviewing production, rather than relying only on the original mood board.
YiYang's 18 catalogue colour options
The current YiYang catalogue lists the following 18 choices across its standard shapes. The names are selection labels; they are not pigment formulas, digital colour values or a promise of an exact printed-colour match.
| Catalogue option | Catalogue option | Catalogue option |
|---|---|---|
| Natural Silver | Pink Violet | Rose Pink |
| Rose Gold | Brick Red | Champagne |
| Pale Gold | Silver Green | Sky Blue |
| Royal Blue | Deep Blue | Purple |
| Blue Violet | Blue-Gold Gradient | Iridescent Gradient |
| Blue-Pink Gradient | Pink-Gold Gradient | Orange-Pink Gradient |
Natural Silver is included in the catalogue's 18-option range. Listing it here does not mean that silver requires the same visible interference colour as blue or violet. For purchasing, use the catalogue name to request the relevant physical reference and confirm the finish with your quotation.
The five options named as gradients should be reviewed as complete appearances. If your brief depends on where one colour meets another, include that requirement in the sample discussion. A short colour name alone does not specify the location or orientation of a transition on a shaped tool.
Choose the shape and colour together
The colour is one part of the product. Shape, dimensions and surface finish still need their own decisions. YiYang's nine catalogue boards are pure titanium with an ice-crystal surface and 3 mm thickness. The catalogue offers its colour options across those shapes, alongside logo engraving and custom retail packaging.
For a first facial SKU, the Classic Heart Z047 provides a two-lobed heart profile measuring 8.5 × 5.6 cm. For a narrower facial tool, the Wave Bar Z048 measures 10.1 × 4.1 cm and has a fine serrated tip. The Massage Spoon Z053 is a separate round-head tool listed for the eye area and cooling press.
These differences matter when selecting where the logo belongs and how the product will appear in a box. If a collection includes several shapes, review the proposed colour on each selected model. Do not approve the entire collection solely from a picture of a different tool.
Write a brief that can become a quotation
A useful private label brief ties the design direction to a particular product. Send the model number and chosen catalogue colour, then include your logo artwork, packaging concept and intended quantity. If several people are involved, name the person responsible for the final visual approval.
For a new outline, YiYang's published process asks for a 1:1 vector drawing in DXF, AI or PDF format, with thickness and edge-radius requirements. A custom shape is subject to technical evaluation and quotation. A sketch can start the discussion, but it should not be mistaken for an approved production specification.
For the colour part of the brief, record:
- The selected catalogue colour name and the tool model.
- Any physical colour reference your team wants considered.
- For a gradient, the appearance and orientation you want reviewed.
- The logo artwork, proposed location and packaging artwork.
- The sample identifier and the person who will approve it.
Keep requested features separate from agreed ones. A brand reference communicates intent; the written specification and signed-off sample establish what you have actually approved.
Use the sample stage to resolve the visual decisions
YiYang's published OEM workflow includes a drawing and written quotation, a pre-production sample, sample sign-off, production and inspection, then packaging and shipping. The sample stage is where the buyer should resolve the visible details of the tool.
Review it in the settings that matter to your range: beside the proposed packaging, alongside other products in the collection and in the lighting planned for photography. These are review conditions to agree with your team, rather than substitutes for a finish specification. Keep the sample clean during comparison so you are reviewing the intended surface.
For a gradient, look at the complete tool and both faces. For an engraved logo, review its position, legibility and relationship to the colour. Record any requested adjustment in plain terms and ask for the revised reference to be identified. A message saying “more premium” gives less direction than a marked image that identifies the exact detail to review.
The current site states that anodized colour is checked against the approved pre-production sample. Keep that sample and its identification available through the order. If your team wants additional acceptance criteria, agree on them explicitly rather than assuming that a catalogue colour name includes them.
Coordinate engraving and packaging
An anodized finish and a laser-engraved logo need to be reviewed as a combined design. YiYang offers logo engraving, but a logo file alone does not settle placement or the appearance of the finished mark. Include the engraving in the sample you approve.
Custom retail boxes can carry your brand artwork and copy. Review the box with the actual chosen tool rather than matching a printed colour to a website photograph. Decide whether the packaging should coordinate with the metal, contrast with it or leave the tool as the main colour element. Those are design decisions your team can resolve before the order specification is finalized.
If you plan several colour variants, give each approved combination a clear internal identity. This makes it easier to keep the right product photographs, artwork and colour names connected when preparing a US or EU retail launch.
Write accurate care and product copy
Colour produced through an oxide layer is not evidence that a finish is scratch-proof or permanent under every condition. Avoid those promises unless they are supported for the exact finished product. For its titanium boards, YiYang's current care guidance is mild soap and warm water, followed by thorough drying before storage. Agree any additional cleaning requirements for the selected finish before putting them on packaging.
Your customer copy can explain the material and process directly: pure titanium, the selected shape and dimensions, and colour formed through a surface oxide layer. Describe “coating-free colour” as colour without added paint, coloured plating or lacquer. Keep it distinct from medical, skin-safety or antimicrobial claims, which are not established by the colour mechanism.
To start a colour review, shortlist a shape and a small selection of catalogue finishes. Read the material comparison guide if you are still choosing between titanium, jade and steel. Then share the brief through the OEM section and inquiry form: Get Free Titanium Colour Swatch & Sample.
Sources
- Nippon Steel Technical Report No. 128: Simulation Technology for Titanium Oxide Layer Interference Color — oxide layers and interference colour on titanium.
- YiYang catalogue, colour range and OEM workflow — the 18 listed colour names, tool specifications and customization process.
Sources were fetched and reviewed on 9 November 2026. The sample-review steps are purchasing recommendations, rather than reported product test results.