Overview

The CLEARSTEM CLEARITY Blackhead Dissolver Mandelic Acid Serum 1oz is a gentle yet highly effective serum designed to dissolve stubborn blackheads. This exfoliating serum works by unclogging pores and reducing excess oil, promoting smoother and brighter skin. Formulated with mandelic acid, it provides deep exfoliation without irritation, while vitamin C enhances skin clarity. Suitable for all skin types, this product is free from harmful additives like hormone disruptors and other pore-clogging ingredients. With regular use, this blackhead dissolver serum offers noticeable results and helps achieve a clearer complexion.

Key Ingredients & Benefits

The main ingredient in this serum, mandelic acid, gently exfoliates the skin, removing dead skin cells and unclogging pores without causing irritation. Vitamin C brightens the complexion by reducing dark spots and uneven skin tone, giving your skin a radiant glow. The serum also supports collagen production, which improves skin elasticity and reduces the appearance of fine lines. Additionally, the formula is non-comedogenic, ensuring it won’t clog pores, making it ideal for acne-prone skin. This combination of ingredients works together to reveal smoother, clearer, and more youthful-looking skin.

Best For

This serum is perfect for individuals struggling with blackheads, clogged pores, or excess oil. It’s also suitable for those seeking a gentle exfoliant that can be used daily without irritation. The serum’s brightening effects make it ideal for anyone looking to improve skin tone and texture, especially those dealing with dullness or uneven skin pigmentation. Thanks to its gentle formulation, this product is suitable for all skin types, including sensitive skin. Those who want a non-irritating and effective solution for clearer skin will find this serum highly beneficial.

User Feedback

Many users report a noticeable reduction in blackheads and an overall improvement in their skin texture after consistent use of this serum. They appreciate that the serum’s gentle formula provides effective exfoliation without irritation, even for those with sensitive skin. The brightening effects are also highly praised, with several users commenting on a more even skin tone. However, some users suggest starting slowly to avoid potential irritation due to the potency of the exfoliating ingredients. Overall, feedback is mostly positive, with many users recommending it for tackling stubborn blackheads and promoting clearer skin.

Pros

  • This serum is highly effective at reducing blackheads with consistent use.
  • It gently exfoliates without causing irritation, making it ideal for sensitive skin.
  • Many users report smoother, brighter skin and more even tone after use.
  • The combination of mandelic acid and vitamin C helps unclog pores and diminish dark spots.
  • It is free from harmful additives like hormone disruptors and pore-clogging ingredients.
  • This product works well as part of a daily skincare routine for those looking to improve skin texture.

Cons

  • Some users find that the exfoliating effect may be too strong if used too frequently.
  • It may take several weeks of consistent use to see noticeable results in skin tone and blackhead reduction.
  • Users with oily skin may feel that the serum leaves a slightly tacky finish.
  • Not all users see dramatic improvements in reducing dark spots or uneven skin tone.
  • Those with extremely sensitive skin may experience mild irritation if used too often.
  • The serum might not be effective in humid climates, where it can feel heavy on the skin.

Ratings

After analyzing verified user reviews from multiple countries, languages, and e-commerce platforms, we found a diverse range of feedback on the CLEARSTEM CLEARITY Blackhead Dissolver Mandelic Acid Serum 1oz. Reviews were carefully filtered to exclude spam, bot-generated, and exaggerated comments, ensuring only high-quality, authentic experiences shaped the results. Both strengths and potential drawbacks of this serum are reflected in the scores, offering a well-rounded view of its effectiveness, ease of use, and impact on various skin types.

Effectiveness in Dissolving Blackheads
92%
Many users report a noticeable reduction in blackheads after consistent use, appreciating the fast-acting nature of this serum. The mandelic acid works gently but effectively to unclog pores, leaving skin visibly smoother and clearer with regular use. For those battling stubborn blackheads, the results seem to be reliable and consistent over time.
However, some users felt that while the serum works on blackheads, it took longer than expected to show full results. A few also noted that certain stubborn areas around the nose required additional applications, which could be frustrating for those seeking faster results.
Exfoliation and Skin Renewal
88%
The gentle exfoliation provided by mandelic acid is often praised for delivering smoother, more radiant skin without causing irritation. Many reviewers with sensitive skin highlighted the serum’s mild yet effective formula, which exfoliates without harshness, offering a refreshing glow after regular use.
On the downside, some users with sensitive skin found the exfoliation to be too strong if used too frequently. A few mentioned mild redness or tingling, especially in the first few uses, advising to start slowly or use it on alternate days to avoid irritation.
Gentleness for Sensitive Skin
84%
This serum is often recommended for sensitive skin users, as many appreciate how it provides gentle exfoliation without causing irritation or breakouts. The formula is light yet effective, which is especially important for individuals looking for a non-invasive solution to blackheads and uneven texture.
Despite the gentle formula, some users still experienced sensitivity, particularly those with ultra-sensitive skin. A few reviews mentioned slight dryness after application, indicating that it may not be suitable for everyone in this category, especially if used frequently without proper moisturizing.
Brightening and Tone Improvement
85%
Users consistently praise the serum's ability to brighten dull, uneven skin tones, thanks to the added vitamin C. Several buyers noticed a visible improvement in their skin’s overall radiance, with dark spots lightening and skin appearing fresher and more even after a few weeks of use.
However, there were a few reviews from individuals who didn’t experience significant brightening effects. Some users felt that while the serum helped with texture, it didn’t provide as much of a noticeable change in pigmentation or dark spots as they had hoped.
Absorption and Texture
80%
20%
Most users found the serum to have a smooth, non-greasy texture that absorbs easily into the skin. The lightweight formula is appreciated by those who dislike heavy or sticky skincare products, making it ideal for layering with other treatments or moisturizers.
A few users mentioned that the serum leaves a slight tackiness on the skin, which can be uncomfortable, especially for those who have oily skin or dislike heavier-feeling products. This sensation may not appeal to everyone, especially when used during warmer weather.
Non-Comedogenic Formula
90%
This serum is highly praised for being non-comedogenic, which means it won’t clog pores or contribute to more breakouts. Reviewers with acne-prone skin noted that they could use it without fear of exacerbating their condition, appreciating its ability to clear pores without causing new blemishes.
However, there were occasional complaints about the formula causing breakouts in users with extremely sensitive or acne-prone skin. These individuals felt that while the product worked on blackheads, it led to mild irritation or additional pimples in certain cases.
Packaging and Dispenser Quality
78%
22%
Many users found the packaging to be sleek and practical, with the dropper dispenser offering good control over the amount of serum used. This design minimizes waste, allowing for more precise and hygienic application.
Some reviewers experienced issues with the dropper not dispensing the serum smoothly, causing frustration during application. Additionally, a few noted that the packaging felt flimsy, and the product could benefit from a sturdier bottle design to prevent potential leakage.
Scent and Fragrance
72%
28%
The serum has a mild, subtle scent that doesn’t overpower the senses, which many users appreciate, especially those with sensitivities to strong fragrances. For most, the neutral fragrance is pleasant and doesn’t linger too long on the skin.
On the other hand, some users were put off by the scent, describing it as too medicinal or unpleasant. This could be an issue for those who prefer fragranced skincare products, as the scent does linger for a while after application.
Long-Term Results
83%
Several users noted that consistent use of the serum leads to long-term improvements in skin texture and tone. Over weeks of regular use, many saw their skin becoming smoother, with noticeable reductions in blackheads and pores looking visibly tighter.
However, some individuals reported that while they noticed initial improvements, the long-term results were not as dramatic as expected. A few users felt that the serum's effects plateaued after a certain point, leading to less impressive results with continued use.
Value for Money
86%
Many buyers consider the serum a worthwhile investment, as it combines effective ingredients at a relatively affordable price. The 1 oz size is viewed as a good value for the quality and performance it offers, especially for those dealing with stubborn blackheads and uneven skin texture.
However, some users felt that the price could be slightly lower, especially given the small size of the bottle. A few noted that while the product works well, there are similar alternatives on the market at a more affordable price point.
Safety and Irritation Risks
87%
The serum is widely regarded as safe for use on various skin types, including sensitive skin. Most users didn’t experience irritation or side effects, making it a good option for people looking for a gentle yet effective exfoliant without the risk of harsh reactions.
A few users did report mild irritation or dryness, particularly if they used the product too frequently. These reactions seem to be linked to overuse or sensitivity, with some recommending starting slowly to assess skin tolerance.
Ease of Application
75%
25%
Users find the serum easy to apply thanks to its smooth texture and lightweight formula. The dropper provides a convenient way to dispense the product without creating a mess, making it simple to incorporate into daily skincare routines.
Some users, however, mentioned that the serum can feel a bit runny or difficult to control at times, especially if not dispensed carefully. This can lead to product wastage or uneven application, which may be frustrating for those looking for precision.

Suitable for:

The CLEARSTEM CLEARITY Blackhead Dissolver Mandelic Acid Serum 1oz is ideal for individuals dealing with blackheads and clogged pores, especially those looking for a gentle yet effective exfoliant. People with sensitive skin will appreciate its mild exfoliation, as it’s designed to work without causing irritation. Those aiming to improve skin brightness and texture can benefit from its vitamin C and collagen-boosting ingredients, which help to smooth the skin and reduce dark spots over time. Additionally, this serum suits all skin types, including those prone to acne, as it’s non-comedogenic and free from harmful additives like hormone disruptors, making it safe for daily use.

Not suitable for:

This serum may not be the best option for users who are highly sensitive to exfoliants, as its mandelic acid can cause mild irritation or dryness if overused, particularly for those with ultra-sensitive skin. People expecting immediate brightening results may find it takes longer than anticipated to see a noticeable improvement in dark spots or overall skin tone. Furthermore, those with oily skin might find the texture slightly tacky or feel it’s too heavy for their needs, particularly if they live in warmer climates. If you're looking for a product that works quickly on stubborn blackheads without the need for gradual use, this might not meet your expectations.

Specifications

  • Size: The product comes in a 1 oz (30 mL) bottle.
  • Main Ingredient: The primary active ingredient is mandelic acid, known for its gentle exfoliating properties.
  • Skin Type: This serum is suitable for all skin types, including sensitive skin.
  • Exfoliation Type: It provides gentle exfoliation by dissolving dead skin cells and unclogging pores.
  • Collagen Boosting: The serum contains collagen-boosting agents to support skin elasticity and promote a youthful appearance.
  • Brightening Effect: Vitamin C in the formula helps brighten skin and reduce the appearance of dark spots.
  • Non-Comedogenic: The serum is non-comedogenic, meaning it will not clog pores.
  • Additive-Free: Free from harmful additives, including hormone disruptors.
  • Usage Frequency: Recommended for daily use, or as directed by your skincare routine.
  • Application Method: Apply a thin layer to clean, dry skin, and allow it to absorb before applying moisturizer.
  • Formulation: The serum is designed to be non-irritating and suitable for regular use.
  • Effect on Blackheads: It helps dissolve and reduce blackheads with regular use.
  • Storage: Store the product in a cool, dry place away from direct sunlight.
  • Texture: The serum has a lightweight, smooth texture that absorbs quickly into the skin.
  • Fragrance: The serum has a mild, neutral scent, which is typical for exfoliating treatments.
  • Compatibility: Suitable for users with oily, dry, or combination skin types.
  • Safety: The serum is free from pore-clogging ingredients, ensuring it won’t irritate or clog pores.
  • SPF Requirement: When using this serum, it is recommended to apply sunscreen during the day, as exfoliation can increase sun sensitivity.
  • Irritation Warning: Users with sensitive skin should start slowly to test for irritation, as the exfoliating ingredients may cause initial redness.

FAQ

To use this serum, apply a thin layer to clean, dry skin after your toner and before your moisturizer. Use it in the evening for best results, as it may make your skin more sensitive to sunlight. Start slowly with 2–3 times per week to avoid irritation.

The key ingredients in this serum include mandelic acid, which gently exfoliates and unclogs pores, and vitamin C, which brightens the skin and reduces dark spots. Collagen-boosting agents help improve skin elasticity, promoting a youthful glow.

Yes, this product is suitable for all skin types, including sensitive skin. The mandelic acid is a gentler exfoliant compared to other AHAs, making it a great option for sensitive skin types. However, it’s recommended to start with less frequent use to gauge your skin’s tolerance.

Yes, this serum is specifically designed to dissolve blackheads and improve overall skin texture. Regular use can help unclog pores and reduce acne breakouts by exfoliating dead skin cells and excess oil.

Store this serum in a cool, dry place away from direct sunlight to maintain its efficacy. Ensure the cap is tightly closed after each use to prevent contamination or oxidation of active ingredients.

Yes, you can apply makeup after using this serum, but allow it to fully absorb into your skin for a few minutes before doing so. Many users find that it creates a smoother base for makeup application.

While this serum is suitable for all skin types, including dry skin, it’s important to follow up with a moisturizing product. The exfoliating action can sometimes leave skin feeling slightly drier, so pairing it with a hydrating moisturizer is recommended.

Most users start noticing improvements in blackhead reduction and skin texture within 2–3 weeks of consistent use. For visible brightening and tone improvement, it may take 4–6 weeks of regular use.

It’s best to use this serum at night because exfoliating acids can make your skin more sensitive to UV exposure. If you do use it during the day, always apply sunscreen afterward to protect your skin.

While this serum is generally well-tolerated, some users may experience mild irritation, redness, or dryness, especially if they are new to exfoliating acids. Start with a few applications per week and gradually increase frequency as your skin builds tolerance.