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Drug name for this article.

Avobenzone, homosalate, octisalate, octocrylene

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Treatment Safety Dosage Interactions FAQ Disposal

At a Glance

Topical products containing avobenzone, homosalate, octisalate, and octocrylene are FDA-approved over-the-counter sunscreens used to prevent sunburn in adults and children 6 months of age and older when applied to exposed skin as directed.
Generic/Biosimilar name: Avobenzone, homosalate, octisalate, octocrylene.
Active ingredients: Avobenzone, Homosalate, Octisalate, Octocrylene.
Available over the counter only.
Administration route: Topical.
Apply liberally to all exposed skin 15 minutes before sun exposure and reapply at least every 2 hours, and after swimming, sweating, or towel-drying.

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How It Works

  • These ingredients act as "chemical filters" that absorb ultraviolet (UV) radiation from the sun so less UV reaches and damages your skin cells.
  • Each filter covers a slightly different part of the UV spectrum (UVA and UVB), and together they provide broad-spectrum protection against sunburn and photoaging.
  • By reducing UV damage, they help prevent DNA changes in skin cells that can lead to premature aging and some skin cancers when used regularly with other sun protection measures.
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Treatment and Efficacy

Approved indications: These active ingredients, in combination, are used in over-the-counter sunscreen drug products to prevent sunburn; when labeled as broad spectrum SPF 15 or higher and used as directed with other sun protection measures, they also help decrease the risk of skin cancer and early skin aging caused by the sun.

Off-label uses: There are no major distinct off-label medical indications; the same active combination is often included in daily moisturizers, cosmetics, and lip or eye products to provide ongoing photoprotection as part of routine skin care.

Efficacy expectations: When applied in a sufficient amount (about 1 ounce for the full adult body) 15 minutes before sun exposure and reapplied as directed, these filters significantly reduce UV-induced redness and burning, with protection beginning shortly after application and lasting for the labeled wear time.

Clinical outcomes: Regular use of broad-spectrum sunscreens like this combination reduces episodes of sunburn, helps limit pigment changes and photoaging (wrinkles, skin roughness), and contributes to lowering long-term skin cancer risk when combined with shade and protective clothing.

Comparison to other sunscreens: Compared with mineral-only sunscreens (zinc oxide, titanium dioxide), this chemical filter combination tends to feel lighter and more transparent on the skin but may be more likely to cause stinging or irritation in people with very sensitive or reactive skin.

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Dosage and Administration

Typical dosing and application: For adults and children 6 months and older, apply a generous, even layer to all exposed skin 15 minutes before sun exposure, using about 1 ounce (a shot-glass full) to cover the full body, and reapply at least every 2 hours and after 40–80 minutes of swimming or sweating, or immediately after towel-drying, depending on the product’s water-resistance rating.

How to use: Shake lotions or sprays if directed; for sprays, apply until the skin glistens and then rub in with the hands, avoiding direct spraying on the face (spray into hands first, then apply); use every day you have sun exposure, even when it is cloudy or through window glass if seeking photoaging or skin cancer protection.

Special instructions: Apply before other heavy makeup but after most skincare (serums, light moisturizers), allow it to dry fully before dressing, and remember often-missed areas such as ears, neck, tops of feet, and backs of hands.

Missed dose guidance: If you forget to apply before going outside, apply as soon as possible, but understand that unprotected time in the sun before application can still cause skin damage; if you forget to reapply at the 2-hour mark, reapply as soon as you remember and limit additional exposure.

Overdose or misuse: Using more than recommended on intact skin mainly increases the margin of protection and may cause only mild irritation; if a large amount is accidentally swallowed, or if someone (especially a child) becomes unusually drowsy, vomits, or acts ill after ingestion, contact poison control or emergency services immediately.

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Safety and Side Effects

Common side effects: The most frequent reactions are mild and include transient stinging or burning, redness, dryness, or itching at the application site, especially on the face or around the eyes; these usually occur soon after application and are self-limited once the product is washed off or use is stopped.

Serious or rare adverse effects: Rarely, people may develop allergic or photoallergic contact dermatitis (persistent rash, swelling, intense itching) or, very rarely, signs of a severe allergic reaction such as widespread hives, swelling of the face or throat, dizziness, or trouble breathing, which require immediate medical attention.

Warnings and precautions: For external use only; avoid contact with eyes, and do not use on broken or severely irritated skin unless directed by a clinician; stop use and seek advice if rash, blistering, or severe irritation develops.

Pregnancy and breastfeeding: Systemic absorption of these filters from normal topical use is low, and they are generally considered acceptable when needed, though some clinicians prefer mineral sunscreens (zinc or titanium) for pregnant or breastfeeding individuals and for very young infants.

Age limits and special populations: Sunscreens like this are recommended for adults and children 6 months and older; for infants under 6 months, shade and clothing are preferred and a healthcare professional should be consulted before use; no specific kidney or liver dose adjustments are needed because systemic exposure is minimal.

Comparative safety: Overall, this combination has a long history of use with a good safety record, but individuals with a history of sunscreen allergy, fragrance allergy, or very sensitive skin may tolerate mineral-based options better.

Side-effect reporting and safety updates: Patients can report suspected adverse reactions to their healthcare professional, to the product manufacturer via the phone number on the label, or to the FDA’s MedWatch program, and can review updated sunscreen safety information on official regulatory or public health websites.

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Interactions and Precautions

Drug and product interactions: Because these ingredients act locally in the skin with limited systemic absorption, interactions with oral prescription or over-the-counter medicines and supplements are not expected; however, using them together with other potentially irritating topicals (such as retinoids, strong exfoliants, or benzoyl peroxide) may increase dryness, stinging, or peeling.

Food, alcohol, and procedure interactions: Food does not affect use, and drinking alcohol does not directly interact with the sunscreen, though alcohol-containing skincare can increase irritation if layered under or over it; there are no known issues with imaging or diagnostic procedures.

Precautions and contraindications: People with a known allergy or prior strong reaction to avobenzone, homosalate, octisalate, octocrylene, or similar chemical filters should avoid this combination; those with very sensitive, rosacea-prone, or eczema-prone skin may prefer patch testing on a small area first or using mineral-only sunscreens.

Monitoring needs: Routine blood tests or organ monitoring are not required; users should self-monitor for new or worsening rashes, persistent stinging, or signs of allergy, and discuss any concerns with a healthcare professional.

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Common Questions and Answers

Q: Is this type of sunscreen safe to use every day on my face?
A: Yes, this combination is commonly used for daily facial sun protection; if you have very sensitive or acne-prone skin, choose an oil-free, non-comedogenic formula and stop using it if you develop persistent irritation or breakouts.

Q: Can I use this sunscreen on my child?
A: It is generally appropriate for children 6 months and older when applied as directed, but for infants under 6 months, sun avoidance and protective clothing are preferred and you should ask a pediatrician before using sunscreen.

Q: Does this sunscreen protect against both UVA and UVB rays?
A: Yes, avobenzone provides strong UVA coverage while homosalate, octisalate, and octocrylene primarily protect against UVB, and together they can provide broad-spectrum protection when the product is labeled as such.

Q: How long does the protection last once applied?
A: Protection starts soon after proper application and lasts up to the time indicated on the label, but you should still reapply at least every 2 hours and after swimming, sweating, or towel-drying for reliable coverage.

Q: Is this safer or better than mineral (zinc or titanium) sunscreen?
A: Neither type is universally better; chemical filters like these tend to feel lighter and more transparent, while mineral sunscreens may be better tolerated by very sensitive skin or those who prefer to minimize exposure to organic UV filters.

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Disposal Guidance

Storage: Keep sunscreen tightly closed at room temperature, away from excessive heat or direct sun (for example, do not leave in a hot car), and out of the reach of children.

Handling: Keep the container clean and dry, recap immediately after use, and avoid puncturing or incinerating spray cans, especially near heat or open flame.

Disposal: Discard unused or expired sunscreen in household trash according to local rules; for aerosols, follow label instructions and do not burn or crush the can, and avoid pouring liquid sunscreen down sinks or toilets.

Content last updated on December 26, 2025. Always consult a qualified health professional before making any treatment decisions or taking any medications. Review our Terms of Service for full details.