Allergen & irritant analysis
2 flaggedThis serum from Deconstruct lists 24 ingredients. AllerNote's analysis flags 2 known contact allergens in the INCI list. No added fragrance, parabens, MI / MCI (isothiazolinones), SLS / SLES sulfates were detected in the listed ingredients.
- Imidazolidinyl ureaKnown allergen (preservative): Formaldehyde
- Propylene glycolKnown allergen (solvent): Propylene Glycol
Not detected: added fragrance, parabens, MI / MCI (isothiazolinones), SLS / SLES sulfates. Contains: formaldehyde-releasing preservatives.
Based on what's flagged, take extra care if you're among:
- People sensitised to preservatives (e.g. MI/MCI or formaldehyde releasers)
Generated from this product's ingredient list and AllerNote's allergen database — educational, not medical advice or a substitute for patch testing.
Benefits
Key Ingredients
- 1Azelaic AcidGently exfoliates and reduces inflammation.
- 2AntioxidantsShields skin from free radical damage.
Full Ingredient List
24INCI (full list, INCI order): water, potassium azeloyl diglycinate, succinic acid, citrus paradisi fruit extract, vitis vinifera seed extract, glycerin, propylene glycol, xylitylglucoside, anhydroxylitol, betaine, sodium cocoyl amino acids, sarcosine, xylitol, sodium gluconate, magnesium aspartate, potassium aspartate, phenoxyethanol, triethanolamine, xanthan gum, ethylhexylglycerin, glucose, sodium benzoate, imidazole, imidazolidinyl urea
Tap any ingredient to see details
Potential Concerns
- May Worsen EczemaMay worsen itching or irritation for eczema.
- May Worsen IrritationMay cause stinging, redness, or sensitivity.
- May Worsen RosaceaCan trigger flare-ups in rosacea-prone skin.
Frequently asked questions
Is Breakout Control D.S. Serum fragrance-free?
No added fragrance or EU-labelled fragrance allergens were detected in Breakout Control D.S. Serum's listed ingredients. "Not detected" isn't an absolute guarantee, but it's a good sign for fragrance-sensitive skin — confirm against the current pack and your own triggers.
Is Breakout Control D.S. Serum paraben-free?
No parabens were detected in Breakout Control D.S. Serum's listed ingredients. Worth keeping in perspective: parabens are among the least common cosmetic allergens, so "paraben-free" matters far less for reactive skin than avoiding fragrance or the preservative MI/MCI.
Is Breakout Control D.S. Serum suitable for sensitive or allergy-prone skin?
It depends on your specific triggers. Breakout Control D.S. Serum contains 2 flagged allergens and 0 irritants (listed in the analysis above). If none are on your personal allergen list it may suit you, but patch test first — add your allergens to AllerNote to check Breakout Control D.S. Serum against your own profile.

