Risks of Using Expired Skin Care Products

With women's passion for beauty and skin care products, they may find themselves collecting many of these products, which sometimes leads to their accumulation and neglecting some of them until they expire. It may happen that women use these products unintentionally. Therefore, today, in Dalili Medical, we decided to ask an important question that we will answer in the following lines: What are the most prominent risks associated with using expired skin care products?

**What are expiration dates?**

Expiration dates are the dates written on cosmetics, which determine the period during which the product remains safe and effective for use. These dates are determined based on stability tests, taking into account factors such as product ingredients, packaging type, and storage conditions. It is important to note that expiration dates differ from the period after opening (PAO) code, which indicates how long the product remains safe to use after opening.

**Why are expiration dates important?**

Expired cosmetics can lead to skin irritation, allergies, and even infections. Expired products can also reduce their effectiveness, as the active ingredients can break down over time. Therefore, it is important to regularly check the expiration dates of cosmetics and dispose of any products that have passed these dates.

**What are expiration dates?**

Expiration dates are the dates written on cosmetics, which indicate how long the product remains safe and effective to use. These dates are determined based on stability tests, taking into account factors such as the product’s ingredients, packaging type, and storage conditions. It is important to note that expiration dates are different from the Period After Opening (PAO) code, which indicates how long a product is safe to use after it has been opened.

**Why are expiration dates important?**

Expired cosmetics can cause skin irritation, allergies, and even infections. Using expired products can also reduce their effectiveness, as the active ingredients can break down over time. Therefore, it is important to regularly check the expiration dates of cosmetics and dispose of any products that have passed these dates.

**How ​​do I determine the expiration date of my cosmetic product?**

The expiration date of a cosmetic product is usually found on the packaging or the product itself. Look for a symbol that resembles an open jar, which is accompanied by a number and the letter “M,” where the number indicates the number of months the product is safe to use after opening.

. Can I extend the shelf life of my cosmetics?

Although the idea of ​​extending the life of cosmetics may seem tempting, it is not recommended to do so. Using products that have passed their expiration date can lead to skin irritation and inflammation, and these products may also lose their effectiveness. To ensure the safety and effectiveness of your cosmetics, it is best to adhere to expiration dates and dispose of any expired products.

Here are the shelf life of products after opening:

- Sponge used to distribute face powder: 3 to 7 weeks.

- Liquid eyeliner: 3 months.

- Skin creams, moisturizers, eye creams, anti-aging creams, acne treatment products, blush, and eye shadow: 6 months to 1 year.

- Shampoo, hair styling products, shaving cream, toothpaste, perfume, and nail polish: up to 2 years.

- Dry deodorant, mouthwash, soap, lipstick and lip gloss, and eye and lip liners: up to 3 years.

What happens to cosmetics after they expire?

When cosmetics expire, they often become dry or crumbly. Some women may resort to adding water or even saliva to moisturize them, but this attempt may allow bacteria to enter.

Moreover, the colors may lose their vibrancy, making these products a suitable environment for the growth of bacteria, which leads to various skin problems, such as:

- Acne.

- Skin rashes.

- Eye infections.

How can I tell if a cosmetic has spoiled?

There are three signs that indicate that a product is no longer suitable for use: a change in the smell of the product, exposure to high temperatures for a long time, or a noticeable change in color or texture.

Why do cosmetics have expiration dates?

Cosmetics are an essential part of our daily lives, as we use them to enhance our beauty and increase our self-confidence. However, like any other product, cosmetics have an expiration date, and many consumers often ignore this.

. **Safety Concerns** Cosmetics have a specific shelf life, which means that they may be contaminated with bacteria and other harmful microorganisms over time. Using cosmetics that have passed their expiration date can lead to skin irritation, allergies, and even infections. This is especially true for eye makeup, as the eyes are more susceptible to infection than the rest of the body. Therefore, it is essential that cosmetics have an expiration date to ensure their safety and do not put the consumer’s health at risk.

. **Effectiveness** Cosmetics that have passed their expiration date may not work effectively. Over time, the ingredients in these products can break down and lose their effectiveness. For example, sunscreens lose their effectiveness after they expire, which means they may no longer protect your skin from harmful UV rays. Similarly, anti-aging creams can lose their effectiveness, and their active ingredients may not work as well as they should.

.** Shelf life varies**Shelf life variesFor cosmetics based on the type of product and its ingredients. For example, mascara and liquid eyeliner have a shorter shelf life compared to other cosmetics, as they are used near the eyes, which are more susceptible to infection. In contrast, lipstick has a longer shelf life due to its lower water content.

.** Storage conditions**The storage conditions of cosmetics greatly affect their shelf life. It is best to store these products in a cool, dry place, away from direct sunlight. Exposure to heat and humidity can cause the ingredients to deteriorate, which can reduce the product’s shelf life. Therefore, it is essential to store cosmetics properly to ensure that they remain effective for as long as possible.

. **The best option**The best option is to monitor the expiration dates on cosmetics and dispose of them immediately after they expire. Using expired cosmetics can pose a risk to your health, in addition to the fact that they may not perform their function effectively.

Cosmetics with expiration dates are intended to ensure safety and effectiveness. Using these products after their expiration date may put your health at risk and may not achieve the desired results. Therefore, it is necessary to follow the expiration dates written on the packages and dispose of them immediately after they expire. Proper storage can also contribute to extending the life of cosmetics.

There are several factors that affect the quality of skin care products, including:

1. **How ​​to use**: It is always recommended to use clean fingertips to obtain the product. If tools are used for application, they must be clean and sterile to avoid transferring bacteria and fungi to the skin.

2. **Exposure to moisture**: Exposing some skin care products to moisture, such as in a warm or steamy bath, can create a suitable environment for the growth of bacteria and fungi.

3. **Product type**: Handling skin care products varies according to their type. For example, water-based products are more susceptible to bacterial penetration compared to other products.

4- Temperature fluctuations: Exposing skin care products to changes in temperature may lead to separation of their components, dryness, or change in their texture.

5- Multiple uses: Sharing skin care products between several people can affect their shelf life, as this increases the product's exposure to bacteria.

6- Preservatives: Natural or organic products that lack preservatives often have a short shelf life, so this should be taken into consideration

**The dangers of using expired creams and cosmetics**

**Face makeup:**If you use water-based facial care products, you should dispose of them after 6 months from the date of opening. While dry face products in powder form can last up to two years. Old liquid products are more likely to grow bacteria, making them expired and risky to use, and their use may lead to lines on the face.

**Mascara:** Liquid mascara is an ideal environment for bacteria to grow. In addition, old and expired mascara does not perform its function well. When it dries, the mascara fibers become thick and complex, preventing you from getting soft and beautiful eyelashes.

**Eye shadow:**Like mascara, liquid eyeliner should be used within three months of opening the package. As for eye shadow, it can be used for up to six months. Liquid eyeliner can grow bacteria, which can cause serious skin and eye problems. It is best to use dry eyeliner that does not contain any water content to avoid risks to your eyes.

**Lipstick:** Lipstick can be used for several years, but the presence of water in it provides an ideal environment for bacterial growth.

**Nail polish:** Nail polish can last up to a year, but after that it may become thick and not as smooth as expected. It is important to store it in a cool, dry place, as these products are very sensitive to high temperatures and humidity.

**Skin care products:**

Skin care products should not be used for more than six months after opening the bottle, especially anti-aging creams. Some ingredients such as vitamin C deteriorate more quickly if not stored properly. Over time, these ingredients become more dense, which leads to the correct proportions not being maintained, making the skin more susceptible to problems such as itching and dryness.

**Hair care products:** When using shampoo and conditioner, pay attention to the expiration date, which can be up to a year. Make sure to close the bottles and tubes tightly, as air or water droplets can cause the chemicals inside the product to react, causing them to deteriorate and separate their components, thus becoming less effective and unsafe for use.

**Dermatitis:**Using expired cosmetics on the skin can lead to dermatitis, and these inflammations can be severe, causing eczema. It is best to consult a dermatologist if dermatitis persists.

**Skin allergies:**Expired cosmetics can lead to multiple problems related to skin allergies, such as rashes, pimples, and swelling. This may be accompanied by severe skin infections that lead to the formation of pus on the skin.

**Skin scars:**Expired cosmetics can also cause scarring on the skin. These scars may take longer to fade, affecting the clarity of the skin.

**Eye infections:**Care should be taken when choosing eye cosmetics, as the eye is one of the most sensitive parts of the body. If these products expire, they may lead to a variety of eye problems, such asFor severe inflammation and infection, in addition to redness, itching and conjunctivitis.

**Acne and pimples:** Cosmetics work in a specific way, and when you use expired products, the ingredients do not perform their function properly. This can lead to clogged skin pores, resulting in problems such as acne and pimples.

**Hair loss:** Using expired hair care products on your scalp and hair can cause hair damage and hair loss, in addition to split ends and other fungal infections.

**Understanding the different types of expiration dates**

As individuals, we often come across expiration dates on a variety of products, especially in the field of cosmetics. It can sometimes be difficult to understand the different types of these dates and what they reflect. However, understanding these dates is essential to ensure that you use safe and effective products.

. **Best before date** The “best before” date, also known as the sell-by date or use-by date, refers to the period when a product is at its best in terms of quality. This date is often listed on non-perishable products such as cosmetics and skincare. After this date, the product may not be unsafe to use, but it may lose its effectiveness. Therefore, it is recommended to use the product before this specified date.

. **Period After Opening (PAO)*The PAO symbol is a small jar with an open lid and a number inside. This symbol indicates the number of months the product is safe to use after it has been opened. This symbol is found on products such as creams, lotions, and serums. Once the PAO period has passed, the product may no longer be safe to use as it can become contaminated with bacteria, which can cause skin irritation or infection.

**. Date of Manufacture** The date of manufacture, also known as the production date, is the date on which the product was manufactured. This date is often listed on products such as perfumes and cosmetics. Although the date of manufacture is not an expiration date, it is recommended to use the product within two to three years of the date of manufacture to ensure its safety and effectiveness.

**. Expiration Date** The expiration date, also known as the use-by date, is the date at which a product is no longer safe to use. This date is usually shown on products such as sunscreen and acne treatments. After this date, the product may lose its effectiveness or become harmful, as the active ingredients can degrade or become unstable. Understanding the different types of expiration dates is essential to ensuring that you use cosmetics safely and effectively. It is important to check expiration dates before using any product and to discard expired products. When in doubt, it is always best to err on the side of caution and replace the product. Remember, your health and safety come first. 

What are some tips to extend the life of my cosmetics? 

It is important to store them properly. It is best to keep them in a cool, dry place, away from direct sunlight and moisture. It is advisable to avoid storing them in the bathroom, as moisture can accelerate the deterioration of products. Also, always make sure to close the lid tightly after use, to prevent air and moisture from entering. Paying attention to the expiration dates of cosmetics is important to ensure their safety and effectiveness. By following the above tips and getting rid of any expired products, you can maintain your appearance and protect your skin from irritation and infections.

How to Read Expiration Dates on Cosmetics?

When it comes to cosmetics and skincare products, it is essential to know when to throw them away. Using expired products can lead to skin irritation, breakouts, and even infections. However, understanding expiration dates on cosmetics can be confusing.

. Check the Expiration Date Some cosmetics may have an expiration date written on the packaging, and this date is usually indicated by the letters “EXP” followed by a specific date. For example, “EXP 07/22” means that the product expires in July 2022. It is important to note that some products may not have an expiration date, but rather a manufacturing date instead. In this case, it can be assumed that the product is good for use for approximately two to three years from the date of manufacture.

. **Watch for changes in texture, color, and smell** Even if a product has not reached its expiration date, you should pay attention to any changes in texture, color, or smell. If you notice any of these changes, it is likely that the product is no longer safe to use. For example, if your lotion has become clumpy or separated, or if your lipstick has an unpleasant smell, it is time to throw it away.

**Check the expiration date** Some cosmetics have an expiration date printed on the packaging, usually indicated by the symbol “EXP” followed by a specific date. For example, “EXP 07/22” means that the product expires in July 2022. It is important to note that some products may not have an expiration date, but rather a manufacturing date. In this case, the product can be considered good for approximately two to three years from the date of manufacture.

**Watch for changes in texture, color, and smell** Even if a product has not reached its expiration date, you should pay attention to any changes in texture, color, or smell. If you notice any changes in these characteristics, it is likely that the product is no longer safe to use. For example, if the lotion becomes clumpy or separates, or if the lipstick has an unpleasant odor, it is time to throw it out.

**Bacterial and fungal infections:** Expired cosmetics are an ideal environment for the growth of bacteria and fungi. When these products expire, the preservatives lose their effectiveness, making it easier for microorganisms to multiply. Using expired cosmetics can lead to bacterial or fungal infections, causing skin irritation and redness, and may develop into acne. For example, using expired mascara can lead to eye infections, while using expired lipstick can cause ulcers.

. **Allergic reactions:** Using expired cosmetics can cause allergic reactions. Over time, these products can deteriorate, resulting in unpleasant odors that may cause allergies in some individuals. For example, using expired foundation can lead to a rash or hives, while using expired eyeliner can cause eye irritation and redness.

**. Skin irritation:** Using cosmetics that have passed their expiration date can lead to skin irritation. These products may lose their pH balance, making them more acidic or alkaline, causing skin irritation and redness. For example, using expired moisturizers can lead to dry and peeling skin, while expired sunscreens can cause skin burns.

*. The importance of understanding expiration dates:** Understanding expiration dates is essential to maintaining healthy and beautiful skin. It is essential to check the expiration date of cosmetics before using them. Most of these products carry a symbol of an open jar that includes a number, indicating the number of months the product can be used after opening. For example, if the product has an open jar symbol that says "12M", this means that it can be used for 12 months after opening.

**Best options**: The best option is to use fresh cosmetics and replace them before their expiration date. It is also essential to store these products in a cool, dry place, away from direct sunlight. In addition, you should avoid sharing cosmetics with others, as this can lead to the spread of bacteria and infections.

. **How ​​to store cosmetics to extend their shelf life**

. Store cosmetics in a cool, dry place: Heat and humidity can cause cosmetics to deteriorate and lose their effectiveness. Therefore, it is preferable to store them in a cool, dry environment, away from direct sunlight. A dark, cool cupboard or drawer is an ideal option for storing these products.

. Avoid storing cosmetics in the bathroom: The bathroom is an unsuitable place to store cosmetics, as it is often humid and warm. Humidity can lead to cosmetics spoiling and bacterial growth. Instead, it is preferable to store them in a bedroom or dressing room. 

Make sure to keep cosmetics away from air and light: Exposure to air and light can cause cosmetics to oxidize and lose their effectiveness. Therefore, it is necessary to store them in tightly sealed containers and away from light. For example, you can store them in a dark, opaque container or in a drawer

. Use appropriate storage containers: To ensure the longevity of cosmetics, it is necessary to use appropriate storage containers. For example, it is best to use an airtight container to store face cream and a pump bottle for lotion. This will help protect the products from exposure to air and light.

. Keep your cosmetics clean: It is important to keep your cosmetics clean and free of bacteria. This can be achieved by washing your hands before using the products and wiping the product with a clean tissue after use. It is also advisable to clean your makeup brushes and sponges regularly to prevent the growth of bacteria.6. Check expiration dates: It is essential to check the expiration dates of your cosmetics and dispose of them immediately after they expire. Using expired products can lead to skin irritation and inflammation. Therefore, you should regularly check expiration dates and replace the products when needed.

. Store cosmetics in the refrigerator: Storing some cosmetics in the refrigerator can help extend their shelf life. For example, putting eye cream in the refrigerator helps reduce puffiness and dark circles. Also, storing nail polish in the refrigerator helps prevent it from thickening and turning into a thick consistency.