Compare · Ingredients

Avobenzone vs Growth Factors

Avobenzone: Provides UVA coverage within tested sunscreen formulas. Growth Factors: Sold in creams for photoaging; evidence is specific to particular products.

Research updated 2026-10-25
Four La Roche-Posay Anthelios sunscreens on white, SPF 60 and SPF 50, with cream swatchesFive growth factor serums lined up on white, including MUMUK, DRMTLGY, PEPFACTOR, E.G.F. and Allies of Skin
Which one?At a glanceWhat it helpsDiagramsUsing bothStrengthsResultsSafetyHow it worksProductsQuestions

Which one is right for you?

Choose Avobenzone if…

Choose a comfortable broad-spectrum sunscreen; avobenzone is one possible UVA filter.

  • You want a lightweight chemical sunscreen
  • UVA protection without white cast
  • Daily wear under makeup

Choose Growth Factors if…

Consider only as an optional cosmetic; independent evidence is limited.

  • Optional anti-aging step
  • You accept limited independent evidence
  • Intact, non-irritated skin
Fine together

Can you use both?

Apply a growth-factor serum first, then sunscreen as the last morning step.

At a glance

● Avobenzone
● Growth Factors
Type
Organic UVA filter
Protein signalling ingredient family
What it does
Provides UVA coverage within tested sunscreen formulas.
Sold in creams for photoaging; evidence is specific to particular products.
Best for
Sunburn; Melasma; Wrinkles and Fine Lines
Wrinkles and Fine Lines
Studied concentrations
Choose by broad-spectrum SPF and water-resistance claims, rather than filter percentage alone.
No standardized strength; the identity and mixture of proteins vary.
When to use
Each morning and before sun exposure.
Morning or night, as directed by the finished product.
Time to results
Protection with correct application; prevention continues over time
Often 8–12 weeks in small cosmetic studies; results may be subtle
Irritation
Can sting the eyes or irritate some skin; stop for a persistent rash.
May irritate; use only as directed on intact skin.
Sensitive skin
Choose a simple formula and test a small area first. Individual tolerance matters more than an ingredient’s reputation for being gentle.
Choose a simple formula and test a small area first. Individual tolerance matters more than an ingredient’s reputation for being gentle.
Available
Prescription or cosmetic status depends on the active, formula and country; check the label.
Cosmetic or OTC products; some high-strength procedures are separate treatments.

What it helps

Compare uses by strength of evidence. Evidence level describes confidence in a benefit, not its size.

Evidence level
Avobenzone
Growth Factors
Strong evidenceMost established uses
Sunburn: 1. Sunburn Header — Light Skin; Lighter skin.

Sunburn

A tested broad-spectrum sunscreen protects against UV exposure; avobenzone supplies UVA coverage.
—
Moderate evidenceSome supportive research
Flat tan patches with soft irregular edges across the forehead and upper cheek of an adult with light skin, the surface completely smooth.

Melasma

Broad-spectrum sun protection supports pigment care; it does not clear melasma alone.
A relaxed forehead with faint shallow horizontal fine lines.

Wrinkles and Fine Lines

Regular sunscreen helps prevent further photoaging.
—
Limited evidenceEarly or small studies
—
A relaxed forehead with faint shallow horizontal fine lines.

Wrinkles and Fine Lines

A small uncontrolled pilot reported improvement with a mixed growth-factor gel.
Insufficient evidence
Sensitive Skin on light skin.

Sensitive Skin

The reviewed sources do not establish this ingredient as a treatment for this concern.
Inflamed acne on light skin. The spots sit in a patch of pink, and the ring of redness around each one is easy to see. A few have a yellow-white head, and the skin between them is dry and flaking.

Acne

The reviewed sources do not establish this ingredient as a treatment for this concern.
Flat tan patches with soft irregular edges across the forehead and upper cheek of an adult with light skin, the surface completely smooth.

Melasma

The reviewed sources do not establish this ingredient as a treatment for this concern.
Inflamed acne on light skin. The spots sit in a patch of pink, and the ring of redness around each one is easy to see. A few have a yellow-white head, and the skin between them is dry and flaking.

Acne

The reviewed sources do not establish this ingredient as a treatment for this concern.
Sagging Skin on light skin.

Sagging Skin

The cited pilot does not establish clinically meaningful lifting.
How it works

Avobenzone

Avobenzone mechanism diagram. Takes up UVA energy: Avobenzone helps reduce UVA reaching the skin. Needs a stable filter blend: Other filters provide complementary coverage.
Open full-size diagram
Diagram explanation and sources

Takes up UVA energy: Avobenzone helps reduce UVA reaching the skin. Needs a stable filter blend: Other filters provide complementary coverage.

Schematic illustration; not a measurement of skin penetration. Effects vary with ingredient identity and formulation.

Source 1 · Source 2 · Source 3 · Source 4

Growth Factors

Growth Factors mechanism diagram. Signals can influence cells: Growth factors interact with specific receptors. Intact skin limits delivery: Large proteins may not reach deeper targets.
Open full-size diagram
Diagram explanation and sources

Signals can influence cells: Growth factors interact with specific receptors. Intact skin limits delivery: Large proteins may not reach deeper targets.

Schematic illustration; not a measurement of skin penetration. Effects vary with ingredient identity and formulation. Some illustrated pathways are experimental; laboratory findings do not establish a clinical treatment benefit.

Source 1

Using both in one routine

Built from where each one usually sits in a routine. Introduce one at a time.

Morning
Step 1
Cleanser
Step 2
Growth FactorsMorning or night
Step 3
Moisturizer
Step 4
AvobenzoneMorning
Night
Step 1
Cleanser
Step 2
Growth FactorsMorning or night
Step 3
Moisturizer

Strengths and forms

Concentrations

Avobenzone is a UVA filter with a U.S. monograph maximum of 3%. Its performance depends on the full sunscreen formula, not the percentage alone.

3%

U.S. sunscreen ceiling

A permitted maximum. This number is not the product’s SPF or a stand-alone measure of UVA protection.

Choosing a strength: Choose a finished, tested broad-spectrum sunscreen rather than a target avobenzone percentage.

Higher strengths: More of one filter is not a substitute for tested UVA and UVB protection or correct application.

Formula matters: Avobenzone needs an appropriate stabilized formulation and complementary UVB protection. Do not add raw filters to skincare.

Growth factors include different signaling proteins and mixtures. A percentage of conditioned media or a supplier complex does not specify the amount or activity of each growth factor.

Choosing a strength: Look for identification of the growth factors and clinical evidence for the exact finished formula.

Higher strengths: There is no established universal cosmetic percentage or proof that a higher blend percentage produces better results.

Formula matters: Early human studies of particular growth-factor preparations do not validate every growth-factor serum or delivery method.

Forms
Chemical sunscreen · Spray · Stick
Serum · Cream

When you’ll see results

Approximate windows, not promises.

● Avobenzone
● Growth Factors
First few weeks

First few weeksProtection starts with correct application; it does not require a weeks-long course.

First few weeksAssess tolerance and texture; immediate softness can come from the base formula.

4–8 weeks

4–8 weeksConsistency matters; this is prevention, not a spot-clearing treatment.

4–8 weeksSubtle changes may appear in some tested products; evidence varies.

8–12 weeks

8–12 weeksContinue correct application and reapplication.

8–12 weeksCompare photographs in the same lighting and reassess benefit.

3–6 months

3–6 monthsMonitor tolerance and sun exposure; a changing spot needs assessment.

3–6 monthsPhotoaging trials often need several months; expect modest rather than dramatic change.

6–12 months

6–12 monthsPhotoaging prevention is a long-term benefit, not a promise of wrinkle reversal.

6–12 monthsLong-term evidence is limited for many cosmetic actives; continue only if useful.

Safety and sensitive skin

Common reactions

Can sting the eyes or irritate some skin; stop for a persistent rash.

May irritate; use only as directed on intact skin.

When to stop

Stop for persistent burning, swelling, blistering or a new rash. Seek urgent care for breathing difficulty or a severe allergic reaction.

Stop for persistent burning, swelling, blistering or a new rash. Seek urgent care for breathing difficulty or a severe allergic reaction.

Sensitive or inflamed skin

Choose a simple formula and test a small area first. Individual tolerance matters more than an ingredient’s reputation for being gentle.

Choose a simple formula and test a small area first. Individual tolerance matters more than an ingredient’s reputation for being gentle.

Important limits

Do not use a cosmetic product as a substitute for diagnosis of an unexplained, changing or persistent skin problem.

Do not use a cosmetic product as a substitute for diagnosis of an unexplained, changing or persistent skin problem.

Pregnancy

Sunscreen use is encouraged in pregnancy; avobenzone is generally considered acceptable. Mineral filters are an alternative if you prefer.

Data are limited and these are usually paused in pregnancy; ask the clinician managing your pregnancy.

How it works

In the skin

On the skin. The finished product delivers avobenzone in a particular vehicle.

Entering skin. Below 500 Da, but sunscreen works in its surface film. Human studies show some absorption; size alone does not establish absorption, harm or protection.

Conversion. No activation step is established as necessary for its intended topical role.

Skin response. Absorbs UVA energy; stability and combination with UVB filters determine the finished product’s protection.

Additional effects. Proposed pathways do not establish a measured depth of delivery or clinical benefit beyond the studies cited.

On the skin. The finished product delivers growth factors in a particular vehicle.

Entering skin. No single molecular mass. The 500 Da guideline cannot be applied to this whole ingredient family or mixture.

Conversion. No activation step is established as necessary for its intended topical role.

Skin response. Growth factors influence cell signalling, but passage of large proteins through intact skin is a delivery challenge.

Additional effects. Proposed pathways do not establish a measured depth of delivery or clinical benefit beyond the studies cited.

Getting in
Below 500 Da, but sunscreen works in its surface film. Human studies show some absorption; size alone does not establish absorption, harm or protection.
No single molecular mass. The 500 Da guideline cannot be applied to this whole ingredient family or mixture.

Product examples

Avobenzone
  • Jack Black Intense Therapy Lip Balm SPF 25 — Avobenzone paired with octinoxate, which destroys it. Real UVA protection is likely well below the label.
  • Supergoop! PLAY Lip Balm with Acai SPF 30 — Properly photostabilized, so better UVA cover than Jack Black's — and fragranced, while selling itself as clean.
Growth Factors
  • Cosrx Peptide Serum — Six peptides plus niacinamide, 150 ml for around $20. Good value — the niacinamide does more work than the peptides.

Common questions

Avobenzone:What should I choose avobenzone for?

Choose a comfortable broad-spectrum sunscreen; avobenzone is one possible UVA filter.

Avobenzone:How strong is the evidence?

A randomized trial supports regular sunscreen use for photoaging prevention, not avobenzone alone. An FDA absorption study measured systemic exposure under study conditions; absorption alone did not establish harm.

Growth Factors:What should I choose growth factors for?

Consider only as an optional cosmetic; independent evidence is limited.

Growth Factors:How strong is the evidence?

An uncontrolled 14-person pilot tested eight growth factors together for 60 days. Without a vehicle control, it cannot separate the formula, natural variation and growth-factor effects.

Sources

Sources and further reading

  1. Sunscreen and prevention of skin aging: a randomized trial. (2013)
  2. Effect of Sunscreen Application on Plasma Concentration of Sunscreen Active Ingredients: A Randomized Clinical Trial. (2020)
  3. Near-visible light and UV photoprotection in the treatment of melasma: a double-blind randomized trial. (2014)
  4. FDA sunscreen application guidance
  5. Reversal of photodamage with topical growth factors: a pilot study. (2003)
  6. FDA sunscreen monograph M020: permitted concentrations
  7. FDA sunscreen regulatory updates, including 2026 orders
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