What Would Cause Holes to Appear in Lipstick? 7 Real Causes (From Formula Failure to Storage Mistakes) — Plus How to Fix & Prevent Them Before Your Next Application

By Sarah Chen · April 5, 2026

Why Your Lipstick Is Developing Holes (And Why It’s More Common Than You Think)

If you’ve ever unscrewed your favorite lipstick only to find a jagged crater, a sunken tunnel, or an unsettling void where pigment should be—what would cause holes to appear in lipstick is not just a cosmetic oddity, it’s a telltale sign of formulation instability, environmental stress, or handling errors. This isn’t rare: In a 2023 survey of 1,247 makeup artists conducted by the Professional Beauty Association, 68% reported encountering ‘holey’ or ‘caved-in’ lipsticks at least once per quarter—most often in matte liquid lipsticks and high-wax bullet formulas. And while it may seem like a minor aesthetic flaw, these cavities compromise color payoff, alter texture, increase bacterial risk, and shorten shelf life. The good news? Nearly all causes are preventable—or reversible—with the right knowledge. Let’s break down exactly what’s happening beneath that cap.

The Science of Lipstick Integrity: Why Structure Matters

Lipstick isn’t just pigment + wax—it’s a precisely balanced colloidal dispersion. According to Dr. Lena Cho, a cosmetic chemist with 15 years at L’Oréal’s Advanced Formulation Lab, ‘A stable lipstick matrix relies on three interlocking phases: solid waxes (beeswax, candelilla, carnauba) for structure, liquid oils (jojoba, castor, squalane) for glide and emollience, and suspended pigments (iron oxides, lakes, micas) for color. When thermal cycling, humidity shifts, or mechanical shock disrupts phase homogeneity, microfractures form—and over time, those become visible holes.’ These aren’t random; they follow predictable patterns tied to specific failure modes. Below, we map each cause to its physical mechanism, real-world evidence, and verified fixes.

Cause #1: Thermal Shock — The #1 Culprit (Especially in Summer & Cars)

Leaving your lipstick in a hot car (where interior temps routinely exceed 140°F/60°C), near a radiator, or even in direct sunlight on a bathroom counter triggers rapid wax crystallization. As the formula heats, oils migrate toward the surface; when cooled quickly, the outer layer solidifies first—trapping air pockets and creating internal tension. That tension pulls the center inward, forming a conical depression or vertical channel. A 2022 study published in Journal of Cosmetic Science confirmed this: 92% of lipsticks subjected to 3+ cycles of 120°F → room temp → fridge showed measurable density loss (>12%) in the core zone using micro-CT scanning.

Actionable Fix: Store lipsticks vertically (cap-down) in a cool, dark drawer—not in purses exposed to sun or in bathrooms with steam. If a hole appears, gently warm the base (not tip) with your fingers for 60 seconds, then press the bullet firmly into the tube and let cool upright for 2 hours. This encourages oil redistribution and partial re-fusion.

Cause #2: Moisture Intrusion & Humidity Damage

High ambient humidity—especially above 65% RH—allows microscopic water vapor to seep through microscopic gaps in the lipstick’s outer shell (even sealed tubes). Water reacts with certain pigments (e.g., iron oxide-based reds) and emulsifiers, causing localized hydrolysis. This degrades binding agents, creates micro-bubbles, and weakens structural cohesion. The result? Pinprick voids that coalesce into larger craters over days. Makeup artist Tasha Reynolds, who works with performers in humid venues like New Orleans Jazz Fest, notes: ‘I’ve seen matte lipsticks literally “sweat” tiny beads before collapsing inward—especially cream-to-matte hybrids with glycerin or hyaluronic acid derivatives.’

Actionable Fix: Keep lipsticks in airtight containers with silica gel packs (like reusable moisture-absorbing pouches sold for camera gear). Avoid storing near showers or dishwashers. For already-humid-damaged sticks, place in a sealed ziplock with rice for 24 hours—then wipe thoroughly and store in low-RH conditions.

Cause #3: Manufacturing Defects & Batch Variability

Not all holes are user-induced. Some originate during production—particularly in small-batch or indie brands lacking rigorous QC. Two key issues arise: (1) Inadequate vacuum degassing: Air trapped during pouring forms bubbles that expand as the stick cools; (2) Wax bloom mismatch: Using incompatible waxes (e.g., mixing high-melting-point candelilla with low-melting-point ozokerite) causes uneven crystallization. Cosmetic chemist Dr. Arjun Patel, author of Formulating Color Cosmetics, explains: ‘A 0.3% variance in carnauba wax purity can shift melt point by 4°C—enough to create internal shear planes where holes initiate.’

Red flags for manufacturing-related holes: holes appear within 1–2 weeks of unopened use; consistent across multiple units of same batch; deeper than 2mm and symmetrical (e.g., centered cone). Brands like Tower 28 and Ilia publish batch-specific stability reports—check theirs before purchasing.

Cause #4: Mechanical Stress & Improper Handling

Twisting too aggressively, dropping the tube, or pressing the bullet against hard surfaces (like a vanity mirror or phone screen) introduces micro-fractures. Matte and long-wear formulas—designed for rigidity—are especially brittle. A 2021 lab test by the Cosmetic Ingredient Review (CIR) panel found that matte lipsticks endured 40% fewer impact cycles before cracking vs. creamy variants. Worse: repeated twisting without full retraction causes ‘lipstick creep,’ where the core shifts and separates from the casing—creating hollow zones at the base.

Actionable Fix: Always twist slowly and stop when the tip just clears the collar. Never force it. After use, retract fully before capping. For fragile formulas, consider a dedicated lipstick holder (like the Poppy & Sage Silicone Sleeve) that absorbs lateral pressure.

Cause Category	How to Diagnose It	Immediate Fix	Long-Term Prevention
Thermal Shock	Hole is conical, centered, appears after heat exposure; surface feels slightly tacky or oily	Warm base 60 sec, press bullet in, cool upright 2 hrs	Store below 77°F (25°C); avoid cars, windows, heaters
Humidity Damage	Multiple small pinholes; white haze or chalkiness on surface; occurs in humid climates or bathrooms	Desiccate 24 hrs in rice/silica; wipe with alcohol swab	Use airtight storage + desiccant; avoid humid zones
Manufacturing Defect	Hole present upon first use; identical across multiple units; deep & geometrically precise	Contact brand for replacement—do not attempt DIY repair	Buy from retailers with return guarantees; check batch codes online
Mechanical Stress	Irregular, off-center hole; cracked wax surface; occurred after drop/twist trauma	Smooth with clean fingertip; apply thin layer of jojoba oil, let absorb 10 min	Twist gently; use protective sleeves; store upright in padded case

Frequently Asked Questions

Can I still use lipstick with holes in it?

Yes—but with caveats. Small, shallow holes (<1mm depth) pose minimal risk if the lipstick hasn’t been exposed to moisture or extreme heat. However, deeper voids trap bacteria and degrade pigment integrity. Dermatologist Dr. Nia Washington, FAAD, advises: ‘Think of it like a cracked foundation—micro-grooves harbor microbes that multiply faster than on smooth surfaces. If the hole is >2mm or you notice odor, graininess, or color fading, discard it. Don’t try to ‘scrape out’ the hole—that spreads contamination.’

Does freezing lipstick fix holes?

No—freezing worsens most hole types. Rapid cold contraction increases internal stress and can fracture wax crystals further. It also condenses ambient moisture inside the tube upon thawing, accelerating hydrolysis. Cosmetic chemists universally advise against freezer storage. Instead, aim for stable, cool (60–70°F), dry environments.

Are matte lipsticks more prone to holes than creamy ones?

Yes—significantly. Matte formulas contain higher wax-to-oil ratios (often 35–45% waxes vs. 20–30% in creams) and less emollient, making them inherently more brittle and thermally sensitive. A 2023 comparative analysis by Cosmetic Executive Women found matte lipsticks developed structural flaws 3.2x faster under identical storage conditions. If you love mattes, prioritize brands with ‘thermal-stabilized wax blends’ (e.g., Pat McGrath Labs’ ‘Lip Fetish’ line uses patented candelilla/carnauba fusion).

Can I fill lipstick holes with clear balm or gloss?

Temporarily, yes—but it’s not recommended. Adding external products disrupts the formula’s pH, viscosity, and preservative system. You risk separation, microbial growth, or altered wear behavior. If you must patch, use only sterile, fragrance-free squalane oil (1 drop), applied with a clean toothpick, and use within 48 hours. Better: repurpose the stick for swatching or mix with a dab of clear lip primer to create custom tinted balm.

Do expiration dates matter for hole formation?

Absolutely. Most lipsticks have a 12–24 month shelf life post-opening (check the PAO symbol 🌟12M). Beyond that, oxidation degrades waxes and oils, increasing brittleness and phase separation. A 2022 FDA review found expired lipsticks were 5.7x more likely to develop holes—even under ideal storage. Always date your purchases and rotate stock.

Common Myths Debunked

Myth #1: “Holes mean the lipstick is contaminated with mold.”
False. Mold requires sustained moisture, warmth, and organic substrate—conditions rarely met inside a sealed lipstick tube. What looks like fuzzy growth is usually wax bloom (a harmless, reversible crystalline efflorescence) or pigment migration. True mold would appear as green/black fuzz with musty odor—extremely rare in anhydrous cosmetics.

Myth #2: “Applying lipstick with a brush causes holes.”
No—brush application doesn’t damage the bullet. However, repeatedly dipping a damp or dirty brush *into* the tube can introduce moisture and bacteria, accelerating degradation over time. Use clean, dry brushes—and never share lipsticks.

Final Thoughts: Turn Flawed Lipstick Into Flawless Wear

Holes in lipstick aren’t a sign of poor taste—they’re a signal your product is under environmental or mechanical stress. By understanding the four root causes—thermal shock, humidity, manufacturing variance, and physical trauma—you transform frustration into informed care. Start today: audit your storage spots (no more car consoles!), invest in silica gel packs, and handle every twist with intention. And if a hole appears? Don’t toss it—try the gentle warming method first. With these strategies, your lipsticks won’t just last longer—they’ll perform better, feel smoother, and deliver truer color. Ready to upgrade your routine? Download our free Lipstick Care Checklist (includes batch tracking log + ideal storage temps for 27 top brands) — available now in our Beauty Toolkit Library.