Strontium Hydroxide
An alkaline adjuster used at low levels. It sets the formula pH and does not affect skin in the finished product.
Supporting ingredient
It gives a product its texture, stability or shelf life. It has no claimed effect on the skin, so an efficacy tier does not apply. What is known about its safety is below
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Strontium Hydroxide (INCI Strontium Hydroxide) is a strong inorganic alkali used at very low levels in a formula. Its job is purely technical: it adjusts the pH of a product to the target value and neutralises acidic ingredients during manufacturing. On efficacy the picture is simple. This is a functional pH adjuster, not a skincare active. It has no independent effect on the skin in a finished product, because once neutralisation is done its work inside the recipe is over. Strontium salts are sometimes added for a soothing feel, but in the pH-regulator role we are talking about a production function. There is no reason for caution during pregnancy or breastfeeding. In the finished product the compound sits in a bound form at a minimal concentration and is not absorbed through the skin systemically, so it can be used. Tolerance is good. In a correctly balanced formula the irritation potential is low and the allergy risk is low, which makes it suitable for sensitive skin. The only real concern is the concentrated raw material on the production line, not the final product.
Frequently asked questions
Is Strontium Hydroxide safe during pregnancy?
Strontium Hydroxide is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Strontium Hydroxide for?
Strontium Hydroxide suits: normal, dry, combination, oily, sensitive.
What is Strontium Hydroxide and what does it do in cosmetics?
An alkaline adjuster used at low levels.
What's the INCI name for Strontium Hydroxide?
The INCI name is Strontium Hydroxide.
See Strontium Hydroxide in a product composition right on the store page
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Similar role in the formula
Other functional ingredients
Sucrose Cocoate, Sucrose Dilaurate, Sucrose Distearate, Sucrose Laurate, Calcium Carbonate, Ethyl Hexanediol, Olea Europaea Seed Powder, Polysorbate 60
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