How to Design Product Packaging: Principles That Drive Purchase

Packaging design is the work of building the surface that tells shoppers, within a few seconds on the shelf or the screen, what the product is, who makes it and why they should choose it. Good packaging is first read in the right information order, then recognized as a brand, and only last found attractive. When that order is reversed, and visual impact hides what the product actually is, you end up with a box that catches the eye but does not make it into the basket.

The process has roughly five stages: brief and shelf analysis, information hierarchy, legal information and technical template, print preparation and proofing, and shelf and screen testing. Below we go through what you need to decide at each stage.

Where do you start with packaging design?

Before talking about colors or logos with a designer, give written answers to these questions:

• Where will the product be sold: supermarket chain shelves, boutique stores, marketplaces, your own online store, or all of them?
• Which products will it sit next to on the shelf? What are the usual color and form conventions of the category?
• What is the price position: the economy end of the category, mid-range or premium?
• What do buyers choose the product by: price, ingredients, brand, ease of use?
• How many variants (flavor, size, color) will there be, and will the range grow later?

The last question is often skipped. A design built for a single product falls apart when five variants arrive. Setting up the range logic from the start, meaning a grid where the brand area stays fixed and the variant information changes, speeds up every product that follows.

What principles make packaging stand out on the shelf?

Clarity. When shoppers look at the box, they should read what the product is, the brand and the main difference at first glance. A practical test: view the design small on a phone, or look at it from two meters away. If the product name and the brand are still readable, the foundation is solid.

Distinctiveness. If everyone in the category uses the same color, using it too makes your product disappear; breaking away from the category completely can make it unclear what the product is. The right point is to keep one category code (for example the product photo or the form) and stand out on another (color, typography, the way it opens).

Consistency. Packaging should speak the same language as the brand's other touchpoints. If logo use, color codes and typefaces come from your brand guidelines, the shelf, the website and social media all show the same brand. We cover color and font choices in detail in our articles on choosing a brand color palette and typography for your brand.

How do you build the information hierarchy on a pack?

The front panel is for selling; the back and side panels are for information. Try not to go beyond three to five elements on the front: brand, product name, variant, one key benefit and, if required, net quantity. Everything else goes on the back.

Put the elements in order of importance and give each one a size level. The largest element is usually either the brand or the product name; when the two compete at the same size, reading gets harder. A mistake we see often is the marketing team wanting every claim on the front. On a front panel with five badges, none of the badges gets read.

What information is mandatory on packaging?

Mandatory information depends on the product group; cosmetics, toys, electrical products and food each have their own regulations, and they also differ by market. The most common example is food. For food sold in Turkey, Article 9 of the Turkish Food Codex Regulation on Food Labelling and Consumer Information lists the information that must appear on the label. It includes the name of the food, the list of ingredients, allergen information, net quantity, the date of consumption, storage conditions, the name and address of the food business operator, the business registration number and the nutrition declaration.

The same regulation also sets a minimum text size: the x-height of mandatory information must be at least 1.2 mm, and 0.9 mm on packs whose largest surface is smaller than 80 square centimeters. Shrinking this information for the sake of aesthetics is an expensive mistake to fix after printing. Because regulations change over time, check the current text and the rules specific to your product with your food engineer or consultant before approving the design. If you sell in other markets, check the labelling rules that apply there.

The barcode area is not a detail to squeeze in at the end either. Find out the barcode requirements of the chains and marketplaces you will sell through at the start, and place the barcode on a surface where scanners can read it easily, with enough clear space around it.

What should you watch for in print preparation?

Packaging is a three-dimensional object, not a flat poster. The design is built on the die line (the cutting and folding template) you get from the manufacturer. Only with this template can you see whether the logo ends up upside down when the lid is folded, or whether text falls on the glue flap.

Pre-print checklist:

• Is the file prepared in the color mode the manufacturer requires (usually CMYK), with a spot (Pantone) color for the brand color if needed?
• Is there bleed beyond the cut line?
• Do fine text and lines stay legible on the chosen paper and printing technique?
• Are effects such as varnish, embossing and foil marked on separate layers?
• Have the colors been approved on a printed proof or wet proof?

The color you see on screen comes out differently on kraft paper and on coated paper. Material choice determines not only the look but also the quality people feel when they touch it; a premium position is not supported by a thin box that crushes easily.

How do you test packaging design?

For a simple shelf test, put a prototype of the product on a real shelf, or a setup that imitates one, together with competing products. Ask a few people you do not know to look for a few seconds and tell you which product, which brand and which variant they saw. This is where you notice that a distinction that is obvious to you is invisible from the outside.

E-commerce needs a separate test. On marketplaces and in search results, the product appears as a small square image. Shrink the packaging photo to that size and place it among competing listings. If the product name cannot be read, review the front panel or the camera angle of the product photo. We collected lighting and angle advice for making packaging look right in photos in our article on e-commerce product photography.

In short: the packaging design steps

1. A written brief covering sales channels, shelf neighbors, price position and the variant plan.
2. An information order of three to five elements on the front, with information areas on the back.
3. The mandatory label information and text size limits for your product group and market.
4. Design and prototype on the die line supplied by the manufacturer.
5. A print file with color mode, bleed and effect layers, followed by a printed proof.
6. A legibility test on the shelf and in a small screen image.

If you want your packaging designed together with your corporate identity, see our graphic design service, or contact us to talk about your own product.