aPad
Azelaic acid derivative serum for redness, uneven tone and excess oil
4.6 / 5.0
(8) 8 total reviews
- Regular price
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139 kr - Regular price
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- Sale price
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139 kr
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QUICK BENEFITS
- Helps even the look of skin tone
- Supports calmer-looking redness
- Helps balance excess oiliness
- Layers easily in morning or evening routines
Who it´s for
Skin types
- Normal Skin
- Dry Skin
- Combination Skin
- Oily Skin
- Sensitive Skin, if used for redness-prone or easily reactive skin support rather than treatment
Concerns
- Hyperpigmentation & Sun Damage, if used for uneven tone and pigmentation support rather than pigmentation treatment
- Irritation & Redness, if used for redness-prone skin support rather than redness treatment
- Acne & Reactive Skin, if used for blemish-prone skin support rather than acne treatment
- Hydration & Glow, if used for lightweight layering and skin calmness support
Routine step
Serum step after cleansing, before emulsions and creams.
Why it works
aPAD is a super-light, oil-free serum with Potassium Azeloyl Diglycinate, an azelaic acid derivative that helps support a more even-looking, balanced and calmer-looking complexion.
Tone-evening support
Potassium Azeloyl Diglycinate helps improve the look of uneven tone and pigmentation. Skin looks more balanced and uniform over time.
Oil-balancing support
PAD helps reduce the look of excess shine by supporting balanced oil production. This makes it useful for oily and combination skin types.
Comfort support
Allantoin and humectants help support hydration and skin comfort. The formula feels light, layers easily and helps skin feel calmer, not tight.
Key Ingredients
Potassium Azeloyl Diglycinate
An azelaic acid derivative and the main active in aPAD. It helps support a more even-looking tone, calmer-looking redness and better oil balance without acting as an exfoliating acid.
Allantoin
A soothing ingredient that helps support skin comfort. It helps balance the formula and makes it suitable for routines focused on calm, lightweight hydration.
Glycerin
A water-binding humectant that helps support hydration in a light serum texture. It helps skin feel more comfortable and less tight.
Methyl-Gluceth 20
A gentle humectant that helps skin hold onto water. It supports a hydrated, comfortable feel without making the formula heavy.
How to use
Apply a few drops after cleansing, morning and/or evening, before emulsions and creams. Use it as a lightweight serum step in routines focused on redness, uneven tone, excess oiliness or blemish-prone skin.
FAQ
What does aPAD do?
aPAD helps support a more even-looking, calmer and less shiny complexion. It contains Potassium Azeloyl Diglycinate, also called PAD, a lightweight derivative of azelaic acid. In the skin, PAD helps influence the look of excess pigment, visible redness and oiliness by supporting tone balance, calming the appearance of irritation and helping regulate sebum. It is not an exfoliating acid, so it works without adding a peeling or resurfacing step to the routine.
What is Potassium Azeloyl Diglycinate?
Potassium Azeloyl Diglycinate, also called PAD, is a water-soluble derivative of azelaic acid combined with the amino acid glycine. It was developed to offer azelaic-acid-like benefits in a lighter, easier-to-formulate format. In skincare, PAD is used to support three main concerns: uneven tone, visible redness and excess oiliness. It helps improve the look of pigmentation by supporting a more balanced pigment process, helps calm the appearance of redness, and helps normalise excess sebum so skin looks less shiny. It is not the same as pure azelaic acid and should not be described as an exfoliating acid.
Who is aPAD best for?
aPAD is suitable for all skin types, especially oily, combination and redness-prone skin. It is a good option if you want a lightweight serum for uneven tone, pigmentation, extra oiliness or visible redness.
Is aPAD an exfoliating acid?
No. aPAD is not an exfoliating acid serum. It contains an azelaic acid derivative, but it does not work like an exfoliating AHA or BHA product.
Can I use aPAD every day?
It can be used morning and/or evening. Start with a frequency your skin tolerates well and layer it before emulsions or creams.
Can I use aPAD with other active ingredients?
aPAD layers well with other skincare products, but avoid overloading your routine with too many strong actives at once if your skin is easily sensitised. Apply it after cleansing and before moisturiser.
Is aPAD pregnancy-safe?
Yes, aPAD is pregnancy-safe. If you are breastfeeding or unsure, check with your healthcare provider before use.
Ingredients (INCI)
Water, Potassium Azeloyl Diglycinate, Propanediol, Glycerin, Methyl-Gluceth 20, Allantoin, Hydroxyethylcellulose, Xanthan Gum, Citric Acid, Ethylhexylglycerin, Phenoxyethanol


aPad
- Regular price
-
139 kr - Regular price
-
- Sale price
-
139 kr
Why know to glow
Curated, science-led skincare focused on effective ingredients and real results. We select products that work with your skin, not against it.
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SCIENCE-LED
Chosen for proven ingredients — we reject more than we stock.
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CRUELTY-FREE
No animal testing, ever.
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EXPERT GUIDANCE
Recommendations from people who read the formulas, not the hype.
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FULL ROUTINES
Each step works with the next, not against it.
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STOCKHOLM-BASED
Fast, reliable delivery — local roots, worldwide shipping.
Shipping and returns
Orders are processed within 1 business day and shipped from Stockholm, Sweden.
Delivery time is typically 1–3 working days within Sweden. Shipping costs are calculated at checkout, with free shipping available on orders over 500 SEK.
You have 30 days to return your order if you are not satisfied. Please contact us at hello@knowtoglow.com with your order number to start a return.
Payments
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All payments are processed securely using encrypted connections to ensure your information is protected.

