Blistex Daily Lip Conditioner Versus Blistex MedPlus Tiegel

You'll typically see this ingredient used in very small amounts; anything above 0.001% in a leave-on product or 0.01% in a rinse-off has to be named on the label in the EU. The citrus oils that carry it sit around 0.5-1% in a finished formula.

Fresh limonene is a weak allergen; the real issue is that it slowly reacts with air and then breaks down from oxidation to create hydroperoxides (which are strong sensitizers). This is why suppliers are required to keep the peroxide value below 20 mmol.

Positive reactions in people being investigated for eczema vary:

It's worth skipping if you have a known fragrance allergy or a compromised barrier, but the risk is low for most people.

Older or long-opened products are also more likely to bother you than fresh ones due to oxidation.

Menthol also has antimicrobial properties.

Squalene is also naturally present in olive oil and exhibits moisturizing and antioxidant properties.

The polyphenols in olive oil also show anti-aging promise; one clinical study found a measurable improvement in skin appearance after 30 days of topical serum use.

Just be aware that applying olive oil directly to skin can weaken the barrier and cause redness. One study with volunteers found even people without sensitive skin experienced a significant reduction in stratum corneum integrity and induced mild erythema.

It's best to use this ingredient as part of a carefully crafted formula (instead of putting it on skin directly from the bottle).

Because it has a 0-2 on the comedogenic scale, it is low risk for acne-prone skin. Just remember the overall formulation of a product matters more than a few ingredients with comedogenic ratings.

This ingredient may not be fungal acne safe because of the oleic and palmitic acid content. These fall within the C11-24 fatty acid range that the Malassezia yeast can metabolize to grow.

Overall, olive oil is a well-studied and nourishing skincare ingredient.

For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of “FRAGRANCE” or “PARFUM” according to EU and US regulations.

The term 'parfum' or 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.

For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance by INCI standards.

One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'.

Depending on the blend, the ingredients in the mixture can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.

Parfum can also be used to mask or cover an unpleasant scent.

The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.

It has a very saturated profile (stearic acid ~34 to 36%, oleic acid ~30 to 40%, and palmitic acid ~24 to 29%) that makes it a strong occlusive: it sits on top and slows water escaping from skin.

Concentration data shows that it can show up anywhere from a few percent in lotions up to 100% in balms, and the FDA lists cocoa butter as an OTC skin protectant active at 50-100%.

The CIR has reviewed it and concluded it to be safe as used in cosmetics.

This is one of the ingredients with a comedogenic score of 4/5 from the rabbit ear test. Just know that a later human study did find that finished products containing high-comedogenic ingredients like cocoa butter did not increase microcomedone formation.

The fair call here is that this ingredient is most likely fine on body or low-percentage formulas, but can potentially be riskier as a heavy leave-on facial product if you break out easily.

Cocoa butter may not be fungal acne safe; it is a triglyceride of C16-18 fatty acids that the Malassezia yeast can metabolize.

Allergies to cocoa butter are rare and uncommon, but a few cases have been documented (mostly in cases where the person ate chocolate). So if you have a tree nut allergy, be sure to patch test or avoid.