Isntree Hyper Acid4 AHA BHA PHA Lha Serum 20ml

Check the Hyper ACID4 contact time

Hyper ACID4 is an acid treatment rather than a plain hydrating serum. Follow the exact contact time and removal instructions printed on your bottle. Keep it away from the eyes and lips, and avoid layering another peel into the same session.

Ingredients and their roles

• Niacinamide: A form of vitamin B3 used in skin-conditioning formulas, including products focused on a more even-looking complexion.
• Allantoin: A skin-conditioning ingredient used to support a softer, more comfortable skin feel.
• Glycerin: A humectant that binds moisture, helping the formula maintain a hydrated feel without adding an oil layer.
• Butylene glycol: A solvent and humectant that helps distribute ingredients through the formula and contributes to moisture retention.

A measured exfoliation step

This Isntree serum is intended for a specific exfoliating session. Check its preparation, contact time and removal instructions before use. Keep other acid or retinoid treatments in mind when planning the same routine, rather than automatically adding this to every existing treatment step.

How to use

After cleansing, apply 2-3 drops to the permitted facial areas, avoiding the eyes and lips. Massage gently for about one minute, then rinse thoroughly with lukewarm water. Follow with moisturiser and use daytime sunscreen. Follow the pack's frequency instructions.

Apply only to the permitted areas and avoid already irritated skin. Introduce at the frequency on the pack, then judge comfort before increasing use. Keep the rest of the session focused on gentle cleansing and moisture, with daytime sun protection as directed.

Product and option details

• Brand: Isntree
• Product type: Serum
• Option: 20ml
• Size / pack stated: 20ml

Frequently asked questions

Can I leave it on just because it is called a serum?

Do not infer leave-on use from the word serum. The Hyper ACID4 pack instructions determine its contact time and removal method; follow those directions for the version supplied.

Should I use it every day?

Follow the frequency stated for this serum. Exfoliating products vary in strength and format, so a schedule from another product is not a suitable substitute.

Can I scrub while using it?

Use the application method for this serum and avoid adding unnecessary friction. Combining chemical exfoliation with vigorous scrubbing can make an otherwise controlled routine uncomfortable.

What size is this version?

This listing identifies the 20ml version. Compare the full product name and pack quantity when choosing between sizes, since another listing in the same Isntree range may have different contents.

Which ingredients help identify the formula?

The ingredient declaration includes Niacinamide, Allantoin and Glycerin. These are selected formula ingredients, not a separate treatment or a statement of concentration. Read the complete list below when checking the product against ingredients you already use.

Full ingredients (INCI)

Water, Gluconolactone, Lactic Acid, Methylpropanediol, Glycolic Acid, Potassium Hydroxide, 1,2-Hexanediol, Diethoxyethyl Succinate, Glycerin, Xanthan Gum, Polyglyceryl-10 Laurate, Acacia Senegal Gum, Polyglyceryl-10 Myristate, Glyceryl Caprylate, Niacinamide, Salicylic Acid, Allantoin, Disodium EDTA, Ethylhexylglycerin, Peat Water, Citric Acid, Hydroxypropyl Methylcellulose, Capryloyl Salicylic Acid, Butylene Glycol, Potassium Sorbate, Charcoal Powder

Ingredients can vary by shade, market or reformulation. Check the declaration on the product you receive.