07 May
Can Clear Skin Really Happen in 30 Days? Exploring the Hype Behind This Miracle Serum
skincare
/ 5 min

Can Clear Skin Really Happen in 30 Days? Exploring the Hype Behind This Miracle Serum

Wondering if the iconic Some By Mi AHA BHA PHA 30 Days Miracle Serum lives up to its hype? Formulated with 14.5% Centella Asiatica, 10,000ppm tea tree leaf water, niacinamide, and a gentle trio of exfoliating acids, this bi-phase serum targets acne, unclogs pores, and calms inflammation without stripping moisture. Read our honest review to see real results, usage tips, and whether it’s right for your skin type!

30 Days Miracle Serum Review

Some By Mi’s 30 Days Miracle Serum is an oily, herbal serum that has a soft menthol smell and is cool to the face. It’s marketed agents are the trio of anti-sebum acids    (AHA, BHA and PHA) which are famous among the K-beauty regime as exfoliating acids that digest sebum and produce radiance to skin. These are in low levels in the serum, allowing it to stay on skin for longer and limit irritation.

 

The serum also boasts niacinamide, which minimizes appearance of pores and hyperpigmentation – whilst also boosting hydration and shine. 

Boosted with 14.5% Centella Asciatica extract and tea-tree oil, both work in tandem as antibacterial agents that reduce harmful levels of bacteria on the skin that cause acne and allows relief of inflammation and redness. The mixture of these essential oils and water floral extracts creates an emulsion of a thicker, softly scented serum to touch. 

Rosermary, basil and bundled herbs sitting in front of olive oil on an ash wood surface

It is cooling and refreshing on the skin and couples very well with Some By Mi’s famous 30 Days Miracle Toner – creating an important contrast to the watery toner effect. With gentle tapping, the serum is quickly absorbed into skin and does not require mechanical massaging, which can inflame spot areas. It provides a good moisturizing effect and can reduce bacterial levels on skin. 

 

This serum is formulated for problematic skin types and designed to reduce bacterial levels in acne-prone skin and provide the careful hydration of centella asciatica, tea tree oil and niacinamide to prevent tight-feeling skin or dryness. This product has shown great effect on chronic acne scars and blackheads in some – especially with oily skin types. 

Is it Possible in 30 Days?

If there was a cure-all for every skin type, there would only be one beauty product on the market and life would be beautifully simple. As we are all unique and individual, however, some products match up well to your skin type and indeed – when matched up to the right skin type, patrons have seen dramatic effects with this serum. 

 

For oily skin types, suffering from scars or blackheads – some have reports dramatic effects within weeks; with the serum helping reduce oily residue on skin, providing a soothing and cooling effect and producing smoother, healthier skin. 

 

For some, there is a “purging” period, there the addition of new oils to the skin causes a reaction and more pimples – which is reported to calm down after 1-2 weeks with a sudden improvement. This is due to the skin accepting the new hydration status and no longer producing as much sebum. 

It is important to note that this serum has had poor effect in sensitive skin types, as the oils and ethanol formulation can cause a reaction in some. It is important if you have sensitive skin to ensure to perform a patch test to ensure compatibility with your skin type. 
Young woman holding serum applicator to cheek, with golden serum dripping

How to Use 30 Days Serum (For Best Results)

Can be used morning or night – and some use it for both. If you are using both morning and night it is crucial to ensure you are using an appropriate cleanser in between to prevent build-up on skin.

 

1. Apply to clean, dry skin (can be used after toner in routine) - use applicator to apply several drops to cheekbones and to forehead.

 

2. Gently spread across skin with fingertips, lightly tapping to allow good contact with skin barrier and absorption. Don’t rub hard to avoid irritating skin.

 

3. Once serum is dry, continue with next product.

Always remember to add a new product to your regime one at a time so you can accurately gauge how you are responding to it.
Some By Mi AHA BHA PHA 30 Days Miracle Serum with infographics about exfoliation on grey background

Why is the 30 Days Miracle Serum Different?

Many serums are advertised as acne treatments or for skin texture enhancement, but few have both active and calming components. That is why Some By Mi 30 Days Miracle Serum differs from other products on the market. It utilises a range of ingredients to ensure the full requirements of skincare is obtained – that your skin is lightly exfoliated, bacteria is reduced and skin is hydrated.

Is It Worth Buying the 30 Days Miracle Serum?

The Some By Mi AHA BHA PHA serum is a classic K-Beauty item that we will likely continue to see for years to come. It is a mild, soothing serum that reduces acne scarring without aggressive treatment. If classic K-Beauty has worked well for you in the past and you are seeking a mild, exfoliating serum that can show good result – this may be your new favourite!

Looking for classic K-Beauty to optimize your skincare routine? Shop the Some By Mi range on Arktastic! We have all the classics, ready to ship from our Melbourne warehouse - straight to your door.

Looking for more product reviews? Read our reviews, where our team tests out products in real-time, on different skin types for our honest review. 

Medicube Niacinamide TXA Serum Honest Review 
Celimax Vita-A Retinal Shot Tightening Booster 

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FAQ – Some By Mi 30 Days Miracle Serum

What does the Some By Mi AHA BHA PHA 30 Days Miracle Serum do? 

 

This dual-layer serum gently exfoliates dead skin cells, unclogs excess sebum from pores, and reduces acne-causing bacteria using a combination of low-dose AHA, BHA, and PHA. Enhanced with 14.5% Centella Asiatica, tea tree oil, and niacinamide, it cools inflammation, reduces redness, and fades hyperpigmentation while maintaining skin hydration.

 

Can the Some By Mi Miracle Serum cause skin purging? 

 

Yes, some users experience a temporary purging period lasting 1–2 weeks. As the AHA, BHA, and PHA speed up cell turnover and draw out underlying pore impurities, brief breakouts may occur before the skin clears up, calms down, and balances its oil production.

 

Is this serum suitable for sensitive skin? 

 

While it contains soothing Centella Asiatica, the formula includes natural essential oils (like tea tree) and ethanol, which can trigger irritation or reactions on ultra-sensitive or severely compromised skin barriers. It is strongly recommended to perform a patch test before incorporating it into your full routine.

Written by Rebecca - Team Arktastic
07 May 2025

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