The haruharu wonder Rose PDRN Firming Serum with Retinal, priced at £15.85 on Amazon (down from £19), has garnered praise from shoppers who report plumper, smoother, and younger-looking skin. One reviewer in her mid-40s said people mistake her for being in her late 20s or early 30s.
Three Trending Ingredients in One Serum
K-beauty, PDRN, and retinal are major skincare trends this year, and this serum combines all three for under £16. PDRN, typically associated with injectable treatments and often derived from salmon sperm, is here replaced with a vegan alternative. Retinal, considered by experts to be more potent than retinol, is included at 0.1% concentration.
The serum launched in January 2026 and is already discounted by 17%, an uncommon occurrence for a new beauty product. According to the Mirror, the formula works to revitalise dull-looking skin, smooth uneven texture, and promote a naturally radiant complexion.
Customer Reviews: Plumpness and Gentleness
The product holds a 4.5-star rating on Amazon. One shopper, whose previous skincare aggravated their skin, said: 'My face is back to being nice and plump - no breakouts either. I was always super satisfied with Korean skincare and this one didn't disappoint.' Another reviewer who had 'swore off retinol/retinal for good' called it 'my ultimate holy grail beautiful skin bestie,' noting it is 'so gentle, light, and feels like a dream.'
A five-star review from a mid-40s user stated: 'It goes on so nicely and feels more gentle than normal retinol. I wake up with glowing skin. I'm in my mid-40s and people often think I'm in my late 20s-early 30s.'
Key Ingredients and Formulation
The serum features vegan Rose PDRN, which refreshes dull skin and supports radiance, along with 0.1% retinal that works overnight to refine rough patches and soften lines. A 5-peptide complex improves elasticity and smoothness. The patented Phyto-Velvet Network ensures a lightweight, non-greasy finish.
However, some customers noted that the serum's natural golden colour from retinal can leave yellow marks on bedding. The product is designed for evening use due to the retinal content.
Comparison with Other Products
At LookFantastic, the INNISFREE Retinol Green Tea PDRN Firming Serum 25ml costs £24.80 (down from £31) but contains retinol instead of retinal. Medik8's Exo-PDRN Prismatic+ is priced at £79 and features a vegan PDRN with enhanced absorption, but no retinal.
Other haruharu wonder Deals
haruharu wonder also offers the Black Rice Moisture Airyfit Daily Sunscreen SPF50+/PA++++ at £14.10 (down from £17), praised for its featherlight texture. The Black Rice Bakuchiol Eye Cream is available for £12.09 (reduced from £13.27), formulated with bakuchiol, a natural retinol alternative for fine lines and firmness.
