The gloss line keeps going here, and it is a nice place to see how far the same formula stretches. 50 Sparkling Mauve, 51 Frozen Light Blue and 47 White Unicorn are all 3D Hydra Lip Gloss shades, and the names tell you these are playful. I would wear Sparkling Mauve when I want shine with more to look at, and I would try White Unicorn and Frozen Light Blue over a lip I have already lined.

Then there is the oil side. The KIKO Milano 3D Hydra Lip Oil is enriched with raspberry seed oil and gives up to 10 hours of hydration, in a smoothing texture with a luminous finish and a touch of color. 02 Atomic Orange, 04 Cherry Cherry and 03 Glossed Glass are the three here. The Kind by KIKO Hydra Lip Oil has 94 percent ingredients from raw materials of natural origin and a smooth, comfortable, non-sticky feel, and 04 Mauve-r Nature and 01 Pure Allure are the two shades here.

If you cannot decide between a gloss and an oil, use the gloss on days with lipstick and the oil on days without. It is a simple rule, and it is how I keep my bag under control.

What I would skip: wearing a glitter shade and an oil at the same time. Pick the sparkle or the slip, not both.

KIKO is not the only place to look for shine, so here is a grid of other glosses to compare. Gucci Hydrating Plumping Lip Gloss in 219 is a bertha pink with a botanical plumping agent that the brand says visibly increases lip volume by 22 percent. TOM FORD makes two here: Sunrise Pink is a rosy nude in a bullet style gloss, and Soleil in Terracotta is a terracotta red gloss that leaves a transfer-resistant tint.

Givenchy Perfecto in N00 Rose Quartz is a sheer pink lip oil gloss with 14 percent squalane. Lancôme Lip Idole JuicyTreat in 10 Pink Ôh La La is a soft pink with 20 percent squalane and a jumbo applicator made to contour lips. Bobbi Brown Crushed Oil-Infused Gloss in In The Buff is a beige rose with hyaluronic acid. Nearly Nude, a lip plumping gloss in a soft taupe, has a peptide and a cooling ingredient, and Clinique Pop Plush in Black Honey Pop is a universal berry in a buttery formula.

A test I like: swipe two of these on your hand next to a KIKO gloss. You will see quickly if you like a sheer wash or a stronger tint.

What I would skip: a plumping gloss right before a long dinner if you dislike a cooling feel. Gucci and the Nearly Nude gloss both plump, so test them for an afternoon first.

To choose, start with the finish. For everyday shine, one of the rosy 3D Hydra Lipgloss shades. For a night out, Sparkling Mauve or Pink Metaverse. For an oil feel, the Lip Oil or the Kind by KIKO one. If a shade name catches your eye, trust it a little, since KIKO Milano lip gloss names tend to hint at the tone. Keep lips smooth with a balm at night, and put gloss on last, in the center, before pressing your lips together once. If you are unsure, buy one sheer shade and one shimmer shade, wear each for a week, and see which one you keep picking up.