Ingredient glossary
Uvinul A Plus
On your shelf ✓What Uvinul A Plus does for your skin, who it suits, and what to watch for.
INCI: Diethylamino Hydroxybenzoyl Hexyl Benzoate · Also: Parsol DHHB
In short: Uvinul A Plus delivers uva1 protection, suits most skin types, and the evidence behind it is strong.
- What it does
- Uva1 protection
- Best for
- Most skin types
- Evidence
- Strong
- How long
- Straight away
how it was measured
Measured on UV attenuation by the applied film - UVA1 protection, contributing to measured UVA-PF; the clinical consensus; no trial pins the point.
The molecule
The Glow take
Only as good as the sunscreen it lives in.
As a single filter, Uvinul A Plus only matters as part of a finished sunscreen you actually reapply. The best SPF is the one that feels good enough to wear every morning.
— Maya
What it does
- uva1 protection
strong evidenceEU committee review of the manufacturer's dossier cleared DHHB for cosmetic use up to 10% (SCCP/1166/08, now Annex VI entry 28), with measured skin absorption…
Why we say this
- EU committee review of the manufacturer's dossier cleared DHHB for cosmetic use up to 10% (SCCP/1166/08, now Annex VI entry 28), with measured skin absorption of 0.04% on average and 0.15% at most — dermal use only, inhalation from sprays was never assessed.
- No body has assessed it as safe in pregnancy; the file contains a rat oral developmental study showing no birth defects up to the highest dose, which is not the same thing.
- In 2025 the SCCS capped the reprotoxic contaminant di-n-hexyl phthalate at 260 ppm in DHHB, targeting 1 ppm, after German testing found it in 21 of 40 DHHB sunscreens sampled.
- SCCP/1166/08 (EU Scientific Committee opinion)
- SCCS/1678/25 (EU Scientific Committee opinion)
On a label: usually effective at 2-10%.
Who it's for, and who should skip it
Tends to suit
- all
- sensitive
Approach with care
No specific group flagged to avoid it.
- Clogs poresLow
- Irritation riskLow
How it fits each skin type
- DrySuits
- CombinationSuits
- OilySuits
- SensitiveSuits
Where it fits in your routine
This one works on contact — there is nothing to wait for.
What that covers, and what it does not
- Measured on: UV attenuation by the applied film — UVA1 protection, contributing to measured UVA-PF.
- Diethylamino hydroxybenzoyl hexyl benzoate is cleared under EU Annex VI (entry 28) to 10% following SCCP/1166/08, with dermal absorption measured at 0.04% on average; protection is present as soon as the film forms, per the standard 15-30 minute pre-irradiation drying in SPF/UVA-PF methodology.
- It is not a US-approved filter.
- The 2025 SCCS restriction on the di-n-hexyl phthalate contaminant is a purity issue, not a timing one, and does not affect this row.
EU Reg 1223/2009 Annex VI entry 28 and SCCP/1166/08; ISO 24443 in vitro UVA-PF; ISO 24444:2019.
Light, and how to keep it
Uvinul A Plus does not break down in light, which is worth saying because plenty of people assume it does.
how it was measured
DHHB is highly valued for its exceptional UV-absorbing properties (especially UVA radiation), excellent photostability, and safety profile.SCCS/1678/25(full)
measured stable in light
Where this filter sits on the ladder of what fails first in an ageing sunscreen: does sunscreen expire?
What regulators say
In the EU uvinul A plus is capped at 10% as a UV filter (Annex VI entry 28).
What the regulator says, in full
- A UV filter has no dose-effect relationship worth stating for one ingredient: the number a reader can use is the product's SPF and UVA rating, measured on the finished film by ISO 24444 and ISO 24443, and it depends on the whole filter system, the film thickness and the vehicle, not on the percentage of bis-ethylhexyloxyphenol methoxyphenyl triazine alone.
- The regulators set ceilings for safety, not efficacy: EU Annex VI entry 18, 10%; not an approved filter in the United States, so no monograph limit.
- Above those limits nothing is permitted and below them the SPF is whatever the product's own test says.
- The caveat: its second job, keeping avobenzone from photodegrading, is a formulation property measured by ISO 24443.
Plays well with
Uvinul A Plus, answered
Is Uvinul A Plus safe during pregnancy?
Yes. Uvinul A Plus is considered safe to use during pregnancy and breastfeeding. As with anything, if you are unsure it is worth a quick word with your doctor or midwife.
Who should avoid Uvinul A Plus?
No specific group is flagged to avoid Uvinul A Plus. It is well tolerated by most skin. Still, introduce anything new one product at a time.
What concentration of Uvinul A Plus actually works?
Uvinul A Plus tends to do its job in the 2 to 10% range. Much lower and it is likely underdosed.
Does Uvinul A Plus break down in the light?
No, and it is worth saying because plenty of people assume it does. DHHB is highly valued for its exceptional UV-absorbing properties (especially UVA radiation), excellent photostability, and safety profile.
Compare Uvinul A Plus with
1 comparison built.
Can you mix Uvinul A Plus with
2 pairings built.
This, for every label you own
One ingredient is easy. A full label is where it gets confusing. The Ingredient Decoder reads any product and tells you the honest truth, ingredient by ingredient.
Sources & how we reviewed this
- SCCP/1166/08 (EU Scientific Committee opinion)read in full
- SCCS/1678/25 (EU Scientific Committee opinion)read in full
What changed on this page
- : the effective dose from trials, what the EU regulates, the highest dose tested
- : light stability
- : what the EU regulates