Skincare brand MIAMO is offering 20% off its Superdose Vit C + [C,L] Radiance Activator Freeze Dry Serum to celebrate its UK launch. The discount brings the price down to £30.40 for a 10-day treatment and £68.80 for a 30-day supply, with the code HELLOUK20 valid until 31 December 2026.
High-dose formula for mature skin
The serum is designed to tackle common concerns of mature skin, including dullness, loss of firmness, redness and environmental damage. Its key ingredient is freeze-dried L-Ascorbic Acid, a pure form of vitamin C that provides antioxidant protection, brightens the complexion and supports collagen production.
Unlike traditional vitamin C serums, MIAMO's formula uses freeze-dry technology, which removes water from active ingredients to preserve their potency and stability. The dual-chamber packaging keeps the liquid and freeze-dried vitamin C separate, allowing users to activate the serum themselves for maximum effectiveness and freshness.
Additional ingredients and alternatives
The formula also contains carnosine peptides to promote skin elasticity, lycopersicum leaf extract to defend against pollution and oxidative stress, and a centella asiatica triterpene complex to soothe the skin and reduce redness.
For those preferring a traditional serum, Facetheory offers a Glow-C Vitamin C 30% Serum for £37, while Paula's Choice 25% Vitamin C+ Glutathione Clinical Serum is available at Cult Beauty for £65.
Shopper reviews
Reviews on Trustpilot are largely positive. One customer aged 56 said: "I just turned 56 and treated myself to the high-dose vitamin C. I've finished the first boost, and my skin looks more defined and radiant. I absolutely love it."
A reviewer in their 60s noted: "I purchased this new Vitamin C product. Personally, I notice my skin looking more radiant every day, with a finer, firmer texture. It is a great buy for someone over 60." Another shopper over 50 reported firmer, less oily skin after a couple of weeks.
However, one shopper with combination skin said the serum left a greasy residue and was highly priced, while others praised its lightweight texture and quick absorption.



