Under-Eye Lines & Crepey Skin in Singapore

Under-eye lines show up as fine crinkles below the lower lashes, fanning lines at the outer corner when you smile, and a thin, crepey texture that makes concealer settle into creases. They often appear earlier than lines elsewhere because the skin here is among the thinnest on the face. If you are comparing under eye wrinkles treatment in Singapore, start by noticing whether your lines appear only when you smile or squint, or whether they stay when your face is relaxed.

Lines that come with expression are dynamic. They form because the ring-shaped muscle around the eye, the orbicularis oculi, folds the skin thousands of times a day. Lines that remain at rest are static, and they reflect collagen and elastin loss in the dermis. Sun exposure is the biggest outside cause of this loss, through ultraviolet damage that breaks down collagen and slows its repair. Dryness, eye rubbing, smoking and rapid weight loss add to it.

Crepey skin is a texture problem rather than a single line. It looks like crinkled tissue paper, often worse when the skin is dehydrated, and usually improves when hydration and dermal collagen improve. At SkinRev Lab we work on the non-invasive side: hydration, surface tightening and texture. Injectable boosters, RF microneedling and wrinkle-relaxing injections are medical treatments performed by Dr Sin Yong at IN Eternity Clinic.

“Relaxing a muscle softens lines made by movement, but it does nothing for lines made by thin, sun-damaged skin, and too much under the eye can make bags look worse.”

— Dr Sin Yong, IN Eternity Clinic

Types

Dynamic lines (crow's feet when smiling), static lines at rest, crepey texture, dehydration lines

Layers involved

Thin lower-lid skin, dermal collagen and elastin, orbicularis oculi muscle

Main outside cause

Ultraviolet exposure, which breaks down dermal collagen and slows repair

RF microneedle depth around the eye

About 0.5–1.5 mm into the dermis

Booster types

Hyaluronic acid (HA), polynucleotides (PN) and poly-D,L-lactic acid (PDLLA) microdroplets in the dermis

Collagen response time

Builds gradually over weeks to a few months after energy or booster treatment

What goes where

The honest ladder:
non-invasive first, medical when it is needed

Start at SkinRev Lab with Perk Eye or SKINTIGHT® if your lines are fine, worse when your skin is dry, and you want gradual change without injections. See the doctor first if the lines stay deep at rest, if crow's feet are strong when you smile, if the skin under your eye is very loose or puffy, or if you have had fillers or injections around the eyes before. Dr Sin Yong at IN Eternity Clinic will check whether the main issue is movement, collagen loss, volume loss or a mix, and plan boosters, RF microneedling or neuromodulator injections to match.

What the research says

The evidence,
with sources

Research into how skin ages shows that chronological ageing and sun damage share molecular pathways that break down collagen and reduce its production. Photoageing depends mainly on the amount of sun exposure and skin type, which explains why under-eye lines appear earlier in people with outdoor lifestyles. A 2026 multispecialty systematic review of under-eye treatments found that microneedling and polynucleotides mainly target texture and fine lines, while neuromodulators help where the eye muscle is overactive.

For energy treatment, a self-controlled study of 18 adults treated twice with RF microneedling at 0.5–1.5 mm depth reported significant improvement in static wrinkles in all four periorbital zones assessed, including the lower lid, with redness and mild pain resolving within a week. A prospective observational study of 42 people given intradermal polynucleotide injections under the eyes found better patient-rated lower-lid and crow's feet scores, with minimal side effects, and its authors called for controlled studies. Individual results vary.

References

1. Fisher GJ, Kang S, Varani J, et al. Mechanisms of photoaging and chronological skin aging. Arch Dermatol. 2002;138(11):1462-1470.
2. Beer J, Boghosian T, Sherif R, et al. What's new with under eye treatment: a multispecialty systematic review of recent under eye treatments. Dermatol Surg. 2026;52(2):155-163.
3. Lin F, Song J, Hua Y, et al. Therapeutic effectiveness of microneedling radio frequency in different areas of periorbital static wrinkles: a self-controlled study. J Cosmet Dermatol. 2025;24(1):e16645.
4. Ziade G, Keyrouz E, El Maalouf J, et al. Prospective observational study of polynucleotide injections for periorbital rhytides. J Cosmet Dermatol. 2026;25(2):e70736.

Common questions

Your questions,
answered

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