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What your skin really doesn't need: These ingredients you should avoid

Ingredients
•
October 30, 2025
•
7 Minutes


Your skin is your largest organ—and everything you apply to it can affect your body. Nevertheless, many skincare products still contain questionable ingredients that do your skin more harm than good.

In this article, you will learn which active ingredients you are better off avoiding—and why modern skincare from VENYA consciously relies on clean, skin-friendly formulations.


These ingredients do not belong in your skincare

 

01 Parabens – the controversial preservatives

Methyl-, propyl-, or butylparaben – these names represent an entire family of preservatives that keep bacteria at bay but can influence your hormonal system.

Studies show: Parabens have an estrogen-like effect and can accumulate in the body. Elevated paraben concentrations have already been detected in breast cancer tissue.

Recognizable by: Endings such as "-paraben" (e.g., methylparaben, ethylparaben).

Better: Rely on safe alternatives like phenoxyethanol in small amounts or natural preservation systems.

 

02 Sulfates – aggressive foaming agents

Sodium Lauryl Sulfate (SLS) and Sodium Laureth Sulfate (SLES) create a rich lather but aggressively attack the skin barrier. They can lead to dryness, redness, and irritation. Additionally, 1,4-dioxane, a potentially carcinogenic substance, is often produced during SLES manufacturing. Particularly critical for daily facial cleansing or sensitive skin.

Better: Gentle surfactants like coco-glucoside clean effectively without stripping the skin of oils.

 

03 Microplastics – the invisible environmental sin

Polyethylene (PE), polypropylene (PP), or acrylates copolymer may improve texture, but they leave lasting residues in the environment and the body. Microplastics do not break down, enter the oceans through wastewater, and eventually return to us. For the skin, they offer no real benefit but can clog pores.

Recognizable by: Terms like "polymer," "polyethylene," "polystyrene."

 

04 Alcohol – the moisture killer

Denatured alcohol (Alcohol Denat.) ensures quick absorption but dries out the skin in the long run. It can weaken the skin barrier and even stimulate sebum production—especially counterproductive for blemish-prone skin.

Important: Do not confuse this with fatty alcohols like cetyl alcohol—these are nourishing and harmless.

 

05 Fragrances – hidden allergens

The term "parfum" or "fragrance" often stands for hundreds of undeclared chemicals. Many of these are the number one cause of allergies and can trigger eczema, contact dermatitis, or respiratory issues. Particularly concerning: lilial, lyral, and similar fragrances—some of which are already banned.

VENYA’s approach: Conscious omission of unnecessary fragrances for maximum skin tolerance.

 

06 Formaldehyde releasers – slowly toxic

DMDM hydantoin, Quaternium-15, and diazolidinyl urea slowly release formaldehyde—a carcinogenic substance. This release can continue for months, especially in heat. Particularly dangerous in long-term products like creams or serums.

 

07 Mineral oils – cheap sealant instead of care

Petrolatum, paraffinum liquidum, and mineral oil seal the skin but prevent the natural exchange of moisture. In the long term, the skin becomes lazy and dependent on this "protective layer." Furthermore, they may contain MOAH residues (aromatic hydrocarbons), which are considered potentially carcinogenic.

Better: Jojoba oil, squalane, or plant-based oils that truly nourish the skin.

 

08 Silicones – the "fake glow"

Dimethicone, cyclopentasiloxane, and cyclohexasiloxane provide smooth skin and shine—but only superficially. Silicones mask skin problems instead of solving them. Non-biodegradable variants also burden the environment.

Tip: Water-soluble silicones are less problematic, but at VENYA, we opt for biodegradable, skin-friendly alternatives.

 

09 PEG compounds – gateway for pollutants

PEG-40, PEG-100, polysorbates make the skin more permeable—also to unwanted substances. They can weaken the skin barrier and promote irritation, especially in sensitive or damaged skin.

VENYA consciously avoids PEGs and uses skin-gentle, modern emulsifiers.

 

10 Aggressive acids – too much of a good thing

AHA and BHA acids such as glycolic acid or salicylic acid only have a positive effect in the right concentration. Excessive dosages or daily use without breaks lead to over-exfoliation—the skin becomes thin, irritated, and blotchy.

Better: Regular, mild exfoliation instead of aggressive acid treatments.

 

11 Hormonally active substances – underestimated danger

Triclosan, benzophenone-3 (oxybenzone), and some chemical UV filters are suspected of influencing the hormonal system. The risk is particularly high for children, adolescents, and pregnant women.

VENYA uses exclusively hormone-neutral, safe active ingredients that still protect and nourish effectively.


How to identify questionable substances

  • Check the INCI list: It is usually on the back or in the online shop, and the order indicates the concentration.

  • Utilize brand transparency: Trustworthy manufacturers like VENYA Skincare explain openly what is in their products.

  • Asking is worth it: Good brands honestly answer questions about their formulations.


Why VENYA is different

  • Less is more – and smarter. VENYA relies on biomimetic active ingredients that your skin recognizes and works with—not against.
  • Clean formulations with high standards. For VENYA, "clean beauty" means more than just avoidance: every ingredient has a real benefit and is scientifically proven to be skin-compatible.
  • Transparency you can trust. On VENYA's product pages, you can see exactly which ingredients are included—and why. No secrets, no greenwashing—just honest, effective skincare.


How to identify questionable substances

  • Check the INCI list – usually found on the back or in the online shop. The ingredients are listed in order of concentration.
  • Manufacturer website – reputable brands explain their ingredients transparently.
  • Ask if unsure – good manufacturers are happy to answer questions about their formulations.


Be particularly careful with these products

"Long-term" skincare
Creams, serums, and lotions that remain on the skin for a long time should be formulated to be particularly pure and skin-friendly. The longer a product stays on the skin, the greater the risk that problematic ingredients will be absorbed.

Eye care
The skin around the eyes is particularly thin and sensitive—substances enter the body more easily here. Therefore, use only gently formulated products without irritating additives.

Children's care
Children's skin is more sensitive and absorbs substances more quickly. In children's cosmetics, low-irritant, tested, and pollutant-free ingredients should be a given.

Leave-in products
Anything that is not washed off—such as leave-in conditioners or overnight serums—should be particularly harmless. Because here, too: the longer the contact time, the more important the purity.


The dose makes the poison

Not every "chemical" substance is automatically bad. The key factors are concentration, duration of use, and combination.

  • Occasional use is usually less problematic than daily exposure.
  • The mixture of multiple products can increase the total burden—even if each individual product seems harmless.

VENYA therefore focuses on minimalist, scientifically aligned formulations that ideally balance skin tolerance and effectiveness.


Natural is not always better

"Natural" sounds good—but is not automatically skin-friendly.

  • Essential oils can be strong allergens.
  • Plant extracts sometimes contain residues such as pesticides.
  • Nature-identical substances are often more stable and safer than their natural originals.

VENYA’s philosophy: We choose the best ingredients—whether natural or synthetic—according to one principle: safe, effective, and skin-compatible.


Positive trends in skincare

"Clean" formulations are increasingly becoming the standard: More brands are opting out of questionable ingredients.

  • Transparency is growing: Companies explain openly what is in their formulations and why.
  • Biomimetic active ingredients: Ingredients developed according to the skin's blueprint that work with the skin instead of irritating it are gaining importance.
  • Personalized care and skinimalism: Modern skincare is becoming more individual—while remaining minimalist without unnecessary additives to prevent over-care.

 

Your skincare checklist

  • Avoid: Parabens, sulfates, microplastics, denatured alcohol, synthetic fragrances, mineral oil, problematic silicones
  • Prefer: Mild surfactants, biomimetic active ingredients like ceramides, peptides, squalane, natural preservation systems, plant oils.
  • Pay attention to: INCI lists, manufacturer transparency, skin tolerance
  • Trust: Brands like VENYA that take quality and safety seriously


Common questions about skincare ingredients

Are all parabens equally concerning?
Not quite. Short-chain parabens are considered less problematic, while long-chain variants like propyl- or butylparaben are more frequently criticized. Best: avoid them completely; your skin will thank you.

Can I simply leave out questionable substances?
Yes! If you switch to clean, irritation-free formulations, your skin can regenerate surprisingly quickly; a noticeably improved complexion often appears after just a few weeks.

Are expensive products automatically better or cleaner?
Not necessarily. Questionable ingredients often hide in high-priced skincare products as well. A look at the INCI list is always worth it—no matter what the product costs.

Where can I find truly "clean" skincare?
At brands that focus on transparency and skin health. With VENYA, you know exactly what is in your skincare and what is consciously left out.

Can I trust all "clean beauty" brands?
Unfortunately, no. The term "clean beauty" is not legally protected. Therefore, do not rely solely on labels; check for yourself which ingredients are included.