Ingredient glossary
THD Ascorbate
On your shelf ✓What THD Ascorbate does for your skin, who it suits, and what to watch for.
INCI: Tetrahexyldecyl Ascorbate · Also: Tetrahexyldecyl Ascorbic Acid
In short: THD Ascorbate delivers brightening and antioxidant, suits most skin types, and the evidence behind it is moderate. One thing to know: needs the right pH to work.
- What it does
- Brightening, antioxidant
- Best for
- Most skin types
- Watch out
- Needs the right pH to work
- Evidence
- Moderate
The molecule
The Glow take
One of the ingredients I trust most.
When your goal is fading dark spots and evening out tone, THD Ascorbate delivers, with a solid amount of evidence behind it. It only performs at the right pH, so it is worth buying from brands that get the formulation details right.
— Maya
What it does
- brightening
- antioxidant
- anti aging
moderate evidenceIn vitro models and small clinical trials with thirty percent serum show meaningful melasma and tone improvement but the overall evidence base is still modest.
On a label: usually effective at 5-30%.
Who it's for, and who should skip it
Tends to suit
- normal
- combo
- oily
- dry
- pigmentation
- photoaged
Approach with care
- very sensitive
- Clogs poresLow
- Irritation riskLow
- pH-dependentIts effect depends on the product's pH
How it fits each skin type
- DrySuits
- CombinationSuits
- OilySuits
- SensitiveTake care
Often chosen for pigmentation, photoaged.
Where it fits in your routine
Plays well with
- niacinamide
- vitamin e
- ferulic acid
- sunscreens
THD Ascorbate, answered
Is THD Ascorbate safe during pregnancy?
Yes. THD Ascorbate 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 THD Ascorbate?
Approach THD Ascorbate with care if any of these apply to you: very sensitive.
What concentration of THD Ascorbate actually works?
THD Ascorbate tends to do its job in the 5 to 30% range. Much lower and it is likely underdosed.
Commonly confused with
- Vitamin C (LAA)Pure vitamin C is the strongest but least stable. THD ascorbate is an oil-loving derivative that trades some punch for a gentler, steadier feel.
Compare THD Ascorbate with
Can you mix THD Ascorbate with
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