MicroPen EVO by Crown Aesthetics (the same company that owns SkinPen) is an FDA-cleared microneedling device and an ideal gateway technology to help improve the appearance of wrinkles of the neck and facial acne scars for people aged 22 and above
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retail list of ~$1,086)

You should contact your GP or diabetes care team if: Cold sensitivity is severe, persistent, or progressively worsening You experience cold intolerance accompanied by other symptoms such as extreme fatigue, constipation, dry skin, hair loss, or unexplained weight gain You develop symptoms suggestive of hypothyroidism (underactive thyroid), which can cause cold sensitivity (note that while GLP-1 receptor agonists have been associated with C-cell tumours in rodent studies, there is no established link to hypothyroidism in humans) You notice signs of anaemia, such as pallor, breathlessness, or palpitations, which can cause cold sensitivity Cold hands or feet are accompanied by colour changes (white, blue, or red), pain, or numbness, which may indicate circulatory problems You experience unexplained fever, chills, or rigors, which could suggest infection You have symptoms of hypoglycaemia (low blood sugar) such as shakiness, sweating, or confusion, especially if you also take insulin or sulfonylureas NICE guidance (NG28) recommends regular monitoring of patients on GLP-1 receptor agonists, including assessment of glycaemic control, weight, and tolerability

The scientific evidence is promising yet preliminary