PRODUCT REVIEW
Jack Black Intense Therapy Lip Balm SPF 25
Avobenzone paired with octinoxate, which destroys it. Real UVA protection is likely well below the label.
Key facts
Jack Black Intense Therapy Lip Balm SPF 25 at a glance.
Avobenzone 3% + octinoxate 7.5% + petrolatum 40.2%
Key active
Waxy balm
Texture
$10
Approximate price
0.25 oz
Size
$10.00
Price
Lip
Type
What is it?
Top things to know about Jack Black Intense Therapy Lip Balm SPF 25
- Jack Black Intense Therapy Lip Balm SPF 25 is a waxy stick balm for chapped lips, about $10 in drugstores. It is a lip moisturizer with a sunscreen claim, not a substitute for facial sunscreen.
- It is built on petrolatum at 40.2 percent, a sealant that slows water evaporating out of the lip, with beeswax and shea butter holding the stick together. The UV filters are avobenzone for UVA and octinoxate for UVB. That petrolatum load is why it goes on thick and does not slide off within minutes.
A good balm with a sun claim that does not hold up. At 40% petrolatum it seals chapped lips well, but the octinoxate degrades the avobenzone in sunlight, and the pair loses roughly 45% of its UVA protection, with no stabilizer in the formula. For real sun, use a zinc lip balm.
— Dr. Schwarz
Skin fit
Is it right for your skin?
Lip Eczema
Licking strips the oil film off the lip, and each round of saliva evaporates and takes more water with it. Lips get drier the more you lick. A heavy petrolatum seal breaks that cycle. One caution — it contains lanolin, a common cause of allergic lip reactions, so if your lips get worse, stop.
Dry Skin
Lips have almost no oil glands and a thinner outer layer than the rest of the face, so they lose water faster and crack sooner. About 40 percent petrolatum is a strong seal that lasts.
Contact Dermatitis
It contains lanolin and flavoring, two common triggers for a lip reaction. If you are working out what your lips react to, do not test with this one.
Texture
What it feels like on skin.
Balm
A waxy balm that goes on thick and stays put. It is firmer than petrolatum jelly, so it takes a moment to warm against the lip before it spreads. It leaves a real shine and a slippery cushion rather than sinking in, which is what an occlusive should do. It is flavored, so you taste it and swallow whatever you lick off. The stick keeps application clean, but you cannot see how much you have put on. Aim for a visible layer.
Alternatives
If this isn’t the right product for you
Supergoop! PLAY Lip Balm with Acai SPF 30
Its avobenzone is stabilized with octocrylene, so UVA protection holds up in sun. Scented and flavored, which lips can react to.
EltaMD UV Clear
A lip balm covers lips only. For the rest of your face, this oil-free, fragrance-free sunscreen with 5% niacinamide.
Cetaphil Mineral Stick
A fragrance-free mineral stick for lips, ears and nose. Water-resistant for 80 minutes, a top-up rather than your only sunscreen.
Ingredients
Full ingredient list.
How to use it
How to use it.
How to apply it
- How muchEnough to leave a visible shine. A thin swipe will not seal.
- ReapplyEvery two hours in the sun, and after eating, drinking or wiping your mouth. Lip balm has the shortest life of any sunscreen — your mouth removes it.
- CarefulSPF 25 on the lips is not sun protection for your face. Use a separate facial sunscreen, and read the Concerns on the filter pairing.
What to expect
- What to expectChapping eases within a day or two, cracks close over about a week. It works only while it is on. If your lips get redder or sorer, suspect the lanolin and stop.
Questions
Common questions.
Is Jack Black Intense Therapy Lip Balm SPF 25 a good lip balm?
Yes. The petrolatum load handles dry, chapped lips.
Is the SPF in Jack Black Intense Therapy Lip Balm SPF 25 reliable?
Less than the label suggests. Octinoxate degrades avobenzone in sun.
Why might Jack Black Intense Therapy Lip Balm SPF 25 irritate my lips?
Lanolin and flavor, both common lip-reaction triggers.
Can I wear Jack Black Intense Therapy Lip Balm SPF 25 at the beach in Hawaii?
Octinoxate is banned in Hawaii and Key West, so it may not be sold there.
How often should I reapply Jack Black Intense Therapy Lip Balm SPF 25 in the sun?
Every two hours, and after eating or drinking.
Should Jack Black Intense Therapy Lip Balm SPF 25 be my only sun protection?
No. Use it as a balm and protect your face separately.
References
Sources.
- 1. Unexpected photolysis of the sunscreen octinoxate in the presence of the sunscreen avobenzone (https://pubmed.ncbi.nlm.nih.gov/15560736/) — Documents that octinoxate and avobenzone undergo concomitant photolysis in sunlight, confirming the well-known chemical incompatibility that degrades avobenzone's UV protection when the two are combined. Link
- 2. Solar cheilosis: an ominous precursor: part I. Diagnostic insights (https://pubmed.ncbi.nlm.nih.gov/22243721/) — Establishes that UV exposure causes squamous cell carcinoma of the lower lip (a deadly cancer with under 75% 5-year survival) and that use of lip protective agents influences risk, backing the claim that lip sun protection genuinely matters. Link
- 3. Use of lip photoprotection in patients suffering from actinic cheilitis (https://pubmed.ncbi.nlm.nih.gov/31475909/) — Reports that more than 90% of actinic cheilitis patients had never used lip photoprotection, supporting the claim that lip sun protection is badly under-appreciated. Link
- 4. In vivo investigations on the penetration of various oils and their influence on the skin barrier (https://pubmed.ncbi.nlm.nih.gov/22092829/) — Finds petrolatum to be the most effective occlusive agent for reducing transepidermal water loss, supporting that a high-petrolatum balm is an excellent moisturizer for chapped lips. Link
- 5. The dual challenge of FDA-evaluated non-GRASE UV filters: Photostability and systemic absorption - A path toward safer and more effective sunscreens (https://pubmed.ncbi.nlm.nih.gov/40451593/) — Confirms that organic UV filters including avobenzone and octinoxate photodegrade in sunlight and that stabilization strategies are needed to preserve protection, supporting the need for a photostabilizer in such formulas. Link