HKH Serum Review
Our verdict
HKH offers a capsule-form serum with a meaningful ingredient stack, including bakuchiol, HPR retinol, trifolium, jojoba oil, and sea fennel, at $22.99 with an alcohol-free formula. A 4.4-star average from 101 reviewers and 30 units per month sold makes this a credible and well-differentiated budget option.
Check price on AmazonBest for
Shoppers who want retinol-adjacent actives like bakuchiol and HPR in an alcohol-free capsule format at an accessible price
Skip if
You prefer a traditional dropper or pump applicator over single-use capsules, or want a fragrance-free option as the product is listed as scented
- Form Capsule
- Key ingredients Bakuchiol Hpr Retinol Trifolium Jojoba Oil Sea Fennel
- Size 14.41 Deciliters
- Scent Scented
- Free of Alcohol Free
Our scorecard
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Owner rating4.4/5
4.4 average across 101 owner ratings
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Popularity0.4/5
101 owner reviews, fewer than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other anti-aging skincare: serums, night creams, facial peels, wrinkle patches and anti-aging devices we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
HKH's serum stands out in the under-$25 tier by disclosing a real ingredient stack. The combination of bakuchiol (a plant-derived retinol alternative), HPR (hydroxypinacolone retinoate, a retinoic acid ester), and retinol together makes this a multi-pathway approach to targeting the appearance of fine lines and skin texture. Sea fennel adds antioxidant potential, and jojoba oil provides a skin-compatible lipid base.
The capsule format is a deliberate design choice. Single-dose capsules minimize air and light exposure, which helps preserve sensitive ingredients like retinol and HPR over time. For users who travel frequently or prefer pre-measured doses, the format has practical appeal. The trade-off is that capsules may feel less convenient than a standard dropper if you use the serum daily over months.
At $22.99 with an alcohol-free designation and 30 units sold per month, this product is gaining real traction. The 4.4-star rating from 101 reviews is a reliable enough sample to indicate consistent satisfaction rather than early enthusiasm alone.
Pros
- Ingredient stack openly disclosed: bakuchiol, HPR retinol, retinol, trifolium, jojoba oil, and sea fennel
- Alcohol-free formula, reducing potential for dryness or irritation with regular use
- Capsule format preserves sensitive actives from air and light degradation
- 4.4 stars from 101 reviews shows stable, consistent buyer satisfaction
- Under $23 with a multi-active formula is strong value for the price
Cons
- Listed as scented, which may not suit fragrance-sensitive or reactive skin types
- Capsule format means no pump or dropper convenience for daily routine users
- No skin type designation listed, so official suitability guidance is missing
- Size listed as 14.41 deciliters, which seems likely to be a data error and does not help with volume comparison
Specifications
- Form
- Capsule
- Key ingredients
- Bakuchiol Hpr Retinol Trifolium Jojoba Oil Sea Fennel
- Size
- 14.41 Deciliters
- Scent
- Scented
- Free of
- Alcohol Free
Performance notes
Bakuchiol may help with the look of fine lines and is generally considered gentler than traditional retinol, making it a popular option for those who find retinol irritating. HPR (hydroxypinacolone retinoate) is a retinol ester that converts to retinoic acid on the skin and is associated with less initial irritation than pure retinol. Having all three retinoid-pathway ingredients together targets the appearance of skin texture and firmness from multiple angles. Jojoba oil supports moisture retention, and sea fennel is used in skincare for its antioxidant properties. The alcohol-free designation suggests formulation with skin comfort in mind.
What buyers say
With 101 reviews averaging 4.4 stars and 30 monthly purchases, HKH has moved beyond the early-adopter phase into consistent demand. The combination of a disclosed ingredient stack and accessible pricing appears to be resonating with buyers who want more than a basic serum at this price level. No significant negative patterns are visible in the available data.
Similar anti-aging skincare: serums, night creams, facial peels, wrinkle patches and anti-aging devices to consider
Frequently asked questions
What is the difference between bakuchiol, HPR, and retinol in this serum?
Retinol is a well-studied vitamin A derivative that may support the appearance of smoother, firmer-looking skin over time. Bakuchiol is a plant-based ingredient often described as a retinol alternative, with a milder profile that may suit those sensitive to retinol. HPR (hydroxypinacolone retinoate) is a retinoid ester that converts to retinoic acid on the skin and is generally considered gentler than pure retinol. This serum includes all three, which targets the appearance of fine lines through different pathways.
Why does the capsule format matter for a retinol serum?
Retinol and its derivatives can degrade when exposed to air, light, and heat over time. Single-dose capsules seal each serving until it is used, which helps the active ingredients stay stable throughout the product's life. This is a practical advantage over open-air droppers, particularly if you are not using the serum every day or keep it in a brightly lit bathroom.
Is this serum suitable if I have sensitive skin?
The alcohol-free designation is a positive marker for sensitive skin tolerance. However, this serum contains retinol and HPR, which can cause initial sensitivity, redness, or flaking for some users, especially those new to retinoids. Starting with less frequent use, such as two to three times per week, and pairing with a good moisturizer can help the skin adjust. The scented formula may also be a consideration if you have reactive skin.