Nicotinoyl Peg-4 Ethylascorbyl Succinate: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 30, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Nicotinoyl Peg-4 Ethylascorbyl Succinate?

Nicotinoyl PEG-4 Ethylascorbyl Succinate is a lab made ingredient that blends parts of vitamin C, vitamin B3, succinic acid and a short chain of polyethylene glycol. By joining these pieces chemists create a stable water loving molecule that dissolves easily into modern skin and hair formulas. The idea first appeared in the early 2010s when brands were searching for gentler vitamin C options that could also calm oily skin and support hair health.

To make it, manufacturers start with ethyl ascorbic acid (a well known vitamin C derivative) and nicotinic acid. They link these to succinic acid, then cap the structure with PEG-4 so it stays flexible in both water and light oils. The final powder is purified, dried and added to cosmetic blends as a concentrated solution.

You will mostly spot Nicotinoyl PEG-4 Ethylascorbyl Succinate in lightweight serums, oil control moisturizers, anti aging creams, brightening essences, wash off and sheet masks, scalp tonics and leave in hair conditioners. Its multitasking nature lets formulators replace several separate actives with one efficient compound.

Nicotinoyl Peg-4 Ethylascorbyl Succinate’s Cosmetic Benefits/Uses

This ingredient pulls double duty for both skin and hair care.

  • Anti-Sebum: Helps balance excess oil on the skin or scalp so pores look tighter and hair stays fresher for longer between washes
  • Antioxidant: Fights the daily damage from sunlight and pollution which can lead to dull tone fine lines and weakened hair fibers
  • Hair Conditioning: Smooths the cuticle and adds light softness without weight making strands easier to comb and style

Who Can Use Nicotinoyl Peg-4 Ethylascorbyl Succinate

The ingredient suits most skin types including oily, combination, normal and dull complexions thanks to its oil balancing and antioxidant profile. Dry or easily sensitised skin can also benefit but may want to pair it with a richer moisturiser because the sebum regulating effect can feel a bit light for very parched faces. It rarely clogs pores so acne prone users often respond well.

Nicotinoyl PEG-4 Ethylascorbyl Succinate is made entirely from laboratory sourced components with no animal derived substances, so it is generally considered suitable for vegans and vegetarians. If the finished product carries additional ingredients always check the full label to confirm cruelty free status.

There is no data indicating that topical use poses a specific risk during pregnancy or while breastfeeding. Absorption through the skin is minimal yet this is not medical advice; anyone who is pregnant or nursing should run new skincare past a qualified health professional to be safe.

The molecule does not increase photosensitivity. In fact its vitamin C core provides a mild protective boost against daily sun exposure, although a broad spectrum sunscreen is still essential.

Potential Side Effects/Adverse Reactions

Responses to topical Nicotinoyl PEG-4 Ethylascorbyl Succinate vary between individuals. The points below list potential reactions yet most people will experience none of them when the ingredient is formulated and used correctly.

  • Mild tingling or temporary warmth: May occur on first application especially on freshly exfoliated skin
  • Dryness or tightness: Rare but possible if used in high concentration on already dehydrated skin
  • Redness or irritation: More likely for those with highly sensitive or compromised skin barriers
  • Contact allergy: Very uncommon yet any ingredient can trigger an allergic response in susceptible users
  • Eye stinging: Can happen if the product migrates into the eyes or is applied too close to the lash line

If irritation or any adverse effect develops stop using the product and consult a healthcare professional if symptoms persist.

Comedogenic Rating

Rating: 1 / 5

Nicotinoyl PEG-4 Ethylascorbyl Succinate is highly water soluble and contains no heavy oils or waxes that typically block pores. Its PEG backbone keeps the molecule lightweight and easily rinsed from skin, which is why the rating sits near the non-comedogenic end of the scale. This profile makes the ingredient generally suitable for those prone to acne or frequent breakouts. At the same time every complete formula is different, so overall pore-clogging risk also depends on the other ingredients in a product.

Summary

Nicotinoyl PEG-4 Ethylascorbyl Succinate combines a vitamin C derivative, niacin-related nicotinic acid, succinic acid and a short PEG chain to deliver three main benefits: it tempers excess oil, offers antioxidant defense and lightly conditions hair. The PEG segment keeps the compound stable in water based formulas while the vitamin and acid portions work to neutralize free radicals, smooth hair cuticles and regulate sebum.

Although not yet a household name, the ingredient has been gaining quiet traction in modern multitaskers like oil control serums and scalp tonics because it lets brands replace several actives with one versatile molecule.

Current research and user reports show a low rate of irritation or pore clogging so the ingredient is considered safe for regular topical use. As with any new cosmetic it is wise to run a small patch test when trying products that feature Nicotinoyl PEG-4 Ethylascorbyl Succinate just to ensure personal compatibility.

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