Everyone I know is either taking too many things without knowing why or taking nothing and feeling vaguely guilty about it. The supplement conversation has become one of the noisiest in wellness: too many opinions, too much marketing, not enough signal.
I have been having this conversation on repeat lately. With friends over dinner, in group chats late at night, with people who are sharp and informed and still genuinely confused about where to start. The questions are always the same. Do they actually work? Which ones matter?
My position is straightforward. The right supplements, taken consistently and at the right dose, make a measurable difference. Not dramatic, not overnight. But compounded over time, they are one of the most cost-effective investments you can make in your skin and your body.
1. Consistency beats everything
Supplements fill gaps your diet leaves and support processes your body is already running. They work best when expectations are honest. Consistent and boring beats expensive and occasional every time.
2. Collagen: the scepticism is outdated
The science on hydrolyzed collagen peptides has strengthened considerably. Studies show real improvements in skin elasticity, hydration, and density with daily use. Hydrolyzed matters: the peptides need to be small enough to absorb. 10g daily is where the good evidence sits.
3. Creatine: the most underused supplement for women
This is the one I want every woman to take seriously. Creatine is not a bodybuilder supplement. It supports cellular energy production, muscle retention, cognitive function, and recovery. For women from their thirties onwards, the benefits compound: it helps preserve muscle mass that naturally declines with age, supports brain health and mood, and reduces fatigue in ways you actually feel. The evidence base is substantial. The dose is simple: 3 to 5 grams daily. It is one of the most studied, safest, and least expensive supplements available. The fact that it got sidelined as a gym supplement is one of the bigger missed opportunities in women's health.
4. Magnesium: the quiet one doing most of the work
Most people are deficient without knowing it. Magnesium is involved in over 300 processes in the body, including sleep, muscle function, and cortisol regulation. Glycinate is the form I keep coming back to. Well absorbed, gentle on digestion, and genuinely effective for sleep quality.
5. B vitamins: foundational for skin from the inside
B vitamins, particularly B12, B6, and folate, support skin cell turnover, barrier function, and the cellular renewal that eventually shows up on the outside. If your diet is varied and includes animal products, you may be covered. If not, a B complex is not optional.
How Skindays Can Help
On a personal note...
Timing and routine matter more than most people realise. Taking supplements at random or only when you remember blunts the effect considerably. Here is how I approach it.
I take collagen and creatine in the morning with breakfast. Both are unflavoured powders that dissolve easily in water or coffee and disappear completely. There is no reason to think about them twice.
Magnesium glycinate I take in the evening, about an hour before bed. It is one of the few supplements where you feel the effect relatively quickly. Sleep is noticeably better within a week or two of consistent use. B vitamins I take mid-morning with food. B vitamins on an empty stomach can cause nausea in some people, and taking them too late in the day can interfere with sleep for others.
The framework is simple: attach each supplement to an existing habit, keep the doses evidence-based, and give it long enough to work. Most supplements need six to eight weeks of consistency before the effects compound into something you can actually measure. The mistake is stopping too soon.
xx,
Diana