To choose foundation online, identify two things separately: skin depth and undertone. Depth describes how light or deep a shade is, while undertone describes the subtle color beneath the skin, usually cool, neutral, or warm.
AGE20’S organizes the Signature Essence Pact Intense Cover shade selection using both characteristics, which makes it easier to narrow down the options.
Table of Contents
Start With Skin Depth
Look at the overall depth of the face, neck, and upper chest in natural daylight. Avoid matching foundation only to the center of the face, which can look lighter or redder than the rest of the body. The goal is a depth that blends into the neck rather than leaving a visible line at the jaw.
Identify Your Undertone
Cool undertones often look pink, rosy, or slightly bluish. Warm undertones tend to look golden, peach, or yellow. Neutral undertones sit between the two.
Comparing your past foundations is a reliable cross-check:
Foundations that looked too orange were probably too warm.
Foundations that looked overly pink were probably too cool.
Foundations that looked gray had the wrong undertone or were too light.
If both warm and cool shades look off against your neck, a neutral shade may suit you better.
Follow the Shade Guide on the Product Page
The quickest way to find your exact match is the step-by-step guide on the AGE20’S Amazon Product Detail Page. It walks you through the same process in three steps:
Step 1: Skin depth. Identify your category: Light, Medium, Tan, or Deep.
Step 2: Undertone test. Use the vein check on your inner wrist in natural light. Cool: veins look blue or purple. Neutral: veins look blue-green. Warm: veins look green or olive.
Step 3: Visual match. Reference the model images on the PDP, which show each shade applied on real skin, and confirm the one closest to your depth and undertone.
AGE20’S currently offers 20 shades across those depth and undertone families, and the lineup is actively being developed and expanded to accommodate an even broader range of skin tones and undertones.
Check the Match in Different Lighting
Once the product arrives, apply a small amount along the jaw and view it in daylight. Give the foundation a few minutes to settle before deciding, since freshly applied base makeup can look different after it sets.
The right shade does not need to disappear on your hand or wrist. It should blend naturally between the face and neck while keeping the finish and coverage you want.
Before you buy, take a moment to work through the PDP shade guide and compare the visual model swatches. It is the simplest way to get a confident match on the first try.